nwobhm - beer
power metal - dragons
hair metal - girls (more than one way)
speed metal - speed
doom metal - drop q
thrash metal - scooped mids to 2
black metal - scooped mids to 0
death metal - angry
nu-metal - angry munchkins
alternative metal - depends
metalcore - RAWR or sniffle
stoner metal - drugs in the desert
sludge metal - big muff
post-metal - 50 minutes clean and calm, 10 seconds very loud
grindcore - drop z and gurgle gurgle singing
mathcore - 2 + 2 = RAWR in 67.83/1209 time
don't get me wrong, i like me some metal
Examples include using all towels in a hotel, even though you don't need them, taking both hot AND mild sauce when at Taco Bell, even if you have no intention of using them, using the automated handi-door activation so that you don't expend energy opening doors and, the best one, leaving your hotel lights and TV on at all times so that the room is ready to go when you come back.
If it doesn't cost you more, you should METAL to balance out the equation. It costs them a little bit more, and gives you a better deal than the next guy.
Wannabe poser shit:
Korn, Limp Bizkit, Linkin Park, and Slipknot.