What key is your interrupt bound to?

As we all know, everyone (regardless of role/spec) does their best to interrupt as much as they can, even if it means losing .00001% of immediate throughput. I prefer to use one of my mouse’s side buttons since it’s always just right there.

So, what key do you press? And for the priests and “meta” DPS, what key would you use if you *had* an interrupt?