A Pennsylvania waitress said a customer left her a note about face masks on his receipt in lieu of a tip after she reminded the man that he needed to cover up when he's not seated. A photo of the receipt with the word "mask" written on the tip line was shared on the Facebook page of John Henry's Pub of Ardmore, where the waitress works. "When your staff politely asks a customer to wear a mask until seated, this is how they are disrespected. Totally unacceptable. 'YOU' should be ashamed of yourself!!" a caption on the post reads.