When it comes to hygiene/food hygiene, do what you like in your own home, however you must take responsibility when serving others!
I was at a park with an ice-cream van and the guy was handling money, grabbing cones with his hands (no paper around them first) and then wiping his sticky fingers on his top etc. So he was contaminating the cones with his money tainted sticky fingers.
I wasn't going to say anything because Ds was buying a slushy. Anyway this guy grabbed the cup from the lip and then the straw from the mouth part.
I asked if he could grab another straw ( I explained why) and he offered me the container to choose my own.
When I commented about how he should also be wrapping paper (or napkin/Serviette) around the cones due to also handling money he had the gall to say "I don't need you to tell me how to do my job"
I then said "Yes I do if it relates to hygiene" and walked off.
I was telling Dh about how no other id!ot there cared and Dh said that's because I'm NOT the normal one, lol!