How do you play 53o Under The Gun?

You've rigged a computer up or you've paid a visit to a computer shop to buy a PC. You've sorted the cables out. Got your graphics cards, plugged in your modem etc.. sorted. You've learnt the gist of the internet, you've surfed to party poker and downloaded the software and you are clued up to know how to install it.

You have a bank account, credit card, PC. You are not a 'tard.

You fancy a game of poker and you've entered your details into Party and deposited your 50 bucks.

So after all that, Why the [censored] are you playing 53o under the gun? Where did that piece of wisdom come from? Which part of your brain decided this is good stuff, bring it on!

Yeah yeah yeah, it was a party S&G and I got busted level 1 but it makes you think doesn't it?

This was a limp, then called a reraise. But what's going through the brain here?