Three things:
1. Why 1980?
2. How is this relevant to anything, especially this thread?
3. "I haven't believed in Santa Claus since 1980."
1. Because it was in 1980 that I discovered he wasn't for real ....
2. If you can believe an iPad could bends by itself, you can still believe in Santa Claus
3. Next time I'm looking for an English grammar lesson, I will surely contact you.
English it's not my language, if you wish we can switch to Italian or German and try again.
Btw I stand corrected .... by someone coming from Texas