An Enid, Oklahoma, International House of Pancakes server received unwelcome advice in lieu of a tip.

Fox 8 - kfor.com

Taylor Stewart was nearing the end of her shift Monday evening, when a man and his three children were seated in her section, reports Fox 8.

The waitress allegedly made an error with the man's order, but fixed it and apologized for it. But the man's demeanor from the get-go signaled that he wasn't happy about something — and it wasn't the food — Stewart told Fox 8.

After the family completed their meal, the man and his family left the IHOP.

When Stewart proceeded to clean the table, she came across a receipt displaying a note instead of a tip. It read: "Gay is wrong!"

Fox 8 - kfor.com

“I was just shocked," Stewart told Fox 8. "I was more shocked than hurt, but I mean, it did hurt.”

Although a growing number of Americans are expressing progressive views about homosexuality — 55 percent support same-sex marriage, according to Pew Research Center — homophobia remains alive and well in the United States.

Earlier in June, The New York Times reported that America's LGBT population are "the most likely targets of hate crimes in America, according to an analysis of data collected by the Federal Bureau of Investigation." The FBI found that one-fifth of the hate crimes in 2014 were motivated by an individual's sexual orientation,

The receipt also sheds light on another serious problem: when people decide not to tip servers.

As reported by ATTN: previously, the federal tipped minimum wage is $2.13, and servers often rely on tips as part of their wages. Because of the inconsistency of servers' tip earnings, they often are forced to supplement their incomes with public support programs, a practice that costs U.S. taxpayers an estimated $9.4 billion each year.