A person who lies in wait, pretending to be sleeping, only to spring a chore on you when you move. Someone who pretends to be sleeping or engrossed in another activity, only to make an inconvenient request of you when you walk by. The chore tiger lies in wait, springing chores on their unsuspecting friends and family.
Shauna is such a chore tiger, I have to sneak out of bed in the morning, otherwise she'll ask me to make her coffee.
I don't call on the way home anymore, Mike is such a chore tiger, he always asks me to make a last minute stop at the store.