"This Couple Were Blasting Baby Shark And Other Kid Music To Their Children In A Restaurant We Paid Tons Of Money To Eat In"
"People Who Leave This Instead Of A Tip"
"Parents At The Restaurant Allowing Their Children To Walk On The Table. Also Saw Them Sticking The Salt Shaker In Their Mouths"
"Leaving Diapers Behind You In A Cafe"
"The Customer Left A Note On The Receipt Telling The Waitress To Call Him Cuz She Has "Beautiful Nipples""
"A Review Written About A 15-Year-Old Server At My Work Place. This Guy Was In His 50's And Made Her Cry In The Middle Of The Restaurant"
"To Think I Really Did Dream Of Being A Waitress"
"A Mother Letting Her Child Drink Syrup Directly From A Communal Syrup Bottle While Watching Street Outlaws On Her Phone"
"I Work In A Restaurant. A Customer Just Left An Unusual Tip"
"Customer Ordered All This Food On Uber Eats And Cancelled The Order The Moment I Finished Making Everything"
"McDonald's In Finland"
"I Took My Kids To McDonald's Drive-Thru. I'm Guessing The Person In The Car In Front Of Me Asked For No Pickles"
"My Pizza Hut Was A Target Of Prank Orders Today. All Of This Food Now Has To Be Thrown Out"
"The McDonald's At Queen And Spadina"
"This Guy Was Staring Through The Cracks At The Girls Working At McDonald's"
"This Lady With Her Shoes On The Counter At McDonald's. She Then Proceeded To Shout At The Staff"
"This Man And His Son Were Watching Stuff On Three Different Devices. All Of Them With Their Volume On Max, In A Public Restaurant"
"Restaurant Closed 15 Minutes Ago, And These People Are Oblivious That The Whole Staff Is Standing Around Waiting For Them To Leave"
"Letting Your Child Do This At A Restaurant And Then Stiffing Your Server"
"This Dude Brought His Own TV To Watch Movies At McDonald's"
"This Guy Hangs Out At All The Fast Food Restaurants In My Town. He Sets Up His Little Cardboard Fort And Uses Their Wi-Fi To Watch Hentai"
"He Took His Kid To Dinner And Watched A Movie On His Phone The Entire Time Without Headphones At Full Volume"
"The Guy Behind Me At McDonald's Was Taking Advantage Of The Free WiFi"
"Just What I Want To See When I'm Eating Lunch"
I have never seen this kind of behavior at any McDonald's in California, and I've been to plenty of them because I travel. They always have decent coffee and clean restrooms.
I believe the word you're searching for is "gratuity" which means "tip."
If you're going to tolerate rude, abusive people then don't whine about the toxicity.