When to give a tip even if you think tipping is out of control

• Many Americans are finding that tips are expected at more and more businesses.
• Two people explained to BI why they think tipping is out of control.
• Pam, a retiree, said she still tips for certain services.

From taxis to pizza establishments and dry cleaners, Pam, 77, has found tipping expectations have spread.

"Everyone is thinking they deserve a tip," Pam — who asked to go by her first name for privacy, but whose identity has been verified with Business Insider — said.