(Following on from those above)
When a warning from your boss causes less annoyance than an NMR

"When you can look at any number, and immediately tell if it's divisible by 7." - No-one knows a shortcut for detecting divisibility by 7 do they?

@WhiteSammy: "by easily crack-able do you mean randomly guessing or some sort of computer aided trial and error?"
1. Access Points (APs) that have a hidden ESSID
2. APs with a MAC Address White List
3. APs with old fashion WEP keys

Disclaimer :-)
Although 1. and 2. aren't really cracking, 3 certainly is and is might also be against the law so I'm not actually advising anyone to do it no matter how easy it is. The thing is, whatever you do, don't be a dick about it. Just because you could connect to someone's WLAN and download a pile of bit torrent stuff doesn't mean you should. Don't do with other peoples WLANs what you wouldn't like other people to do with yours.

figle, divisibility by seven's shortcut takes alot of remembering:

units + 3xtens + 2xhundreds - thousands + 4xtenthousands - 2xhundredthousands + 1xmillions + 3xten millions +2xhundredmillions - billions etc.

basically, going backwards along the number, sum digits after multiplying by:
1,3,2,-1,-3 or 4,-2
in a loop.

and it should be divisible by 7 if the number is.

So its not really worth it when you can just use the adjust and simply method (I guess its a proof by contradiction) . For those who don't know what I mean, or don't understand the name. To find if 1352837 is divisible by 7.
If 1352837 is then (subtracting 7) 1352830 is. Drop the 0 (this takes out factor of 10).
135283 is so (adding 7) 135290 is, so test 13529
Continuing:
13529 => 13480 => 1348 => 1320 => 132 => 139 != 140 => NOT
======
Ah, so its +(1,3,2) - (1,3,2) ...
1352837
(7+9+16)-(2+15+6)+1 = 10 != 7 => Not
----
Well, much quicker, but that's a lot to remember!

when you hear on the news that a senior diplomat has been sent to serbia and hope and prey it isn't diplomat 1824, they have only just finished one war.

That's it figle.

There is the age-old method of Actually doing the division.

when you play the game so much at work that your huge number of visits to the site is actually noticed by the IT department, and they block it. And the company has thousands of employees. And they noticed you. >.<

I'm still bitter.

@sceptic_ka - Using anyone's wireless network without their permission is definitely a crime (at least in the UK), and I believe it is classified as theft. AND that's even if it's left completely free of encription (although I personally feel that's akin to inviting everyone to come on in)...

Which leads very nicely to: when you're willing to commit a crime to ensure a stable (or winning) position in a game.

When you listen to the World News at 7 and wonder what this has to do with you getting support into Belgium?

Whne you are the IT Director and start selectively editing the network usage reports that your network engineers give you before routing them up to the President/CEO).

So how is my hidden ESSID, white list MAC Address, WPA (not WEP) encrypted network crackable? My network engineers took a shot at it and couldn't do it. I used a random password generator to generate the ESSID and don't allow external/wireless systems to manage the wifi router, only wired internal systems.

Oh, and neither the router nor any of the systems talking to it allow ad-hoc connections.

When someone asks you what the ideal modern world-domination military consists of, you respond in terms of armies and fleets, but completely neglect to mention an air force.

when you get home from school, you open diplomacy before getting a snack or chackig email

When you start playing Diplomacy with yourself.

When as Financial Director of a young enterprise company you see it as your duty to get other people to pay of the companies debt, on the promise that you will pay them back in "a while".

when your wife accuses you of cheating and you think she is accusing you of multi-accounting and or meta-gaming.

ouch maniac! so is cheating on your partner closer to metagaming or multiaccounting?

I've always considered it to be a form of contingency planning, myself. Perfectly legitimate.

When you get upset over not getting the slightest amount of points.

It's closer to metagaming, since it's out of game communication influenced by out of game factors. Multiaccounting is just confusing.

How is it confusing? One person playing with more 2 or more accounts. simple as that.

When you discuss whether cheating on your wife is more like meta-gaming or multi-accounting

When you put up posts on the forum about a game you lost and hope a bunch of other people will bash on the winner just to make you feel better, when there is nothing wrong with who the winner is winning.

how*

I'm behind you on this one AMP. It is such a small pot (only 3 points per SC) and the person who started the bitchin' gets her buy in back anyhow. Totally stupid of them to whine about the fact that you wanted to get the biggest win you felt you could. Dip players can be such whiny bitches sometimes.