I sometimes like the situation that forces you to rely on your instinct and impulses.
I've had a lot of baptism by fire.
I'm a kid who did stock and summer youth theater where we'd put up two shows and you had no rehearsal. I've also understudied, where I've had to go on with no rehearsal.
I think all villains have something in common: they have something that they need or want very, very badly. The stakes are very high and they are not bound by moral codes or being ethical, so they can do anything and will do anything to get what they want.