Based on many of the other comments here it would look more like: Customer 1 (richy rich): $5 + no tip Customer 2 (workin man): $5 + $2 tip Customer 3 (poor

Based on many of the other comments here it would look more like: Customer 1 (richy rich): $5 + no tip Customer 2 (workin man): $5 + $2 tip Customer 3 (poor man): $5 + $1 tip The tip amount seems to depend more on empathy/demographics than the amount of money one has to spend.