Thank you for your time
If someone invests time with you, whether it’s to help with a project, move a sofa, or just go to the movies, it’s appropriate to thank them for their time. They willingly gave of themselves, and deserve a bit of thanks for it.
What if you steal their time, though? Can you still thank them for something they didn’t mean to give you?
Suppose you’re at a farmer’s market and see some amazing apples. You could, if you chose to, walk up and take one of the apples and shout a “thanks for the apple” back to the seller…