So I am in the service industry and we go to a lot of houses… Not very often but sometimes when doing a job for someone, they will offer to buy us lunch or coffee, etc… How often do you except when someone is offering? Yesterday my father turned down a $100 tip from someone… but this person was not wealthy by any means he was an average Joe working a 9 to 5 job, and his house was in a mess and you could tell he was just barely making it by… what do you do?