I want to tell an elderly couple to fuck off
Why do you think it's okay to tell an elderly couple to fuck off?
Because they are just so annoying, I should have left earlier since I was sick of listening to them.
You shouldn't say that, it's wrong to swear at elderly people. You should keep to yourself and not harass others.
I just had a bad day and I'm feeling bad.
It's not nice to swear at people, especially older people. If you were tired of listening to them, you should excuse yourself and leave, not swear at them.