The wait staff at restaurants deal with a lot of absolutely garbage customers. Not only people who are rude, but people who majorly overstep boundaries by grabbing employees. Waiters and waitresses don't deserve any of that, nor do they get paid enough to deal with it.
That's why one restaurant owner who saw his waitress being harrassed has decided to give her the entire bill that table spent, which totaled out to over £1,000, or just over $1230.