I got stuck in an elevator with 8 of my friends and it was scary.
Given the chance, would you go on another elevator ride?
I hope not, I'm worried that my girlfriend might get stuck in an elevator like me.
Riding in elevators is very safe even though you got stuck in one once with your friends. You shouldn't be scared to ride in one. Staying out of elevators will only heighten your fear of them.
I'm going to stop riding elevators for a while and take the stairs.
In a way it's good to take stairs but remember it's not always possible. You should not avoid riding elevators, it's not a solution. Keep in mind it was just one incidence, not necessarily your experience will get repeated.