There are twelve types of customers, each with varying levels of tipping and patience:

TYPE - CUSTOMER
Good tippers and impatient - Businesswoman, businessman, bride (pink dress with tiara)
Average tips and patient - Woman with brown skirt, man with grey pants, prom queen (little pink dress), male student
Average tips and impatient - Female student
Bad tips and impatient - Punk boy and Goth girl
Bad tips and very patient - Grandma and grandpa