Stupid sayings because you don't want to drink alcohol?

Good evening everyone, Maybe you know the situation. You want to do something with someone or even a whole group (it doesn't have to be a big party!), and everyone else is getting something (alcoholic) to drink. I don't NEVER drink, but only when I want to and on appropriate occasions like birthdays, graduation parties,…

Is it bad to tell colleagues that you don't want to be in group photos (farewell gift for teachers)?

A group photo will be taken for the teachers and presented as a gift. It will then be hung in the hallway for everyone to see. This way, it won't remain among colleagues, but will be made "public." But we also have other gifts. I generally don't like photos and my privacy is very important…