Laura, wow.. people actually take money out of your tip jar?
All the time! And sometimes it's more than just a few pennies. People will be a dollar short and ask "Can I take it from there?" (pointing at the tip jar) No! You can not take it from there. Don't be a jerk and take out the debit card that I can clearly see hanging out of your wallet. I'm amazed at the nerve of some people.