"No offense."
A video (seen below) posted by Twitter user @Paris__G shows a Tim Horton's customer holding up the drive thru line so he could sanitize his coffee cup before taking it with him. The man, who tries to explain himself during the endeavor, rotates the cup and sprays it down multiple times with some sort of sanitizer before removing the lid and chucking it back into the drive thru window, landing now super-clean lid on the floor. As drivers behind him honk, he yells at them to "f**k off" before spilling out some of the beverage and driving off.