Remember back when you first started watching the series? We all had our fair share of beliefs that we thought were 100% true, but turned out the be a total load a crap. I'll give some examples of stuff that I used to think:
* I thought the Predator in Predator 2 where brothers
* The Elder Predator can be seen as a clone in A:R
* I thought that Runner can brak and roll over since it was part Dog
* I thought the Alien Skull in Predator 2 was a Raptor Skull
* I thought i saw Freddy glove next to the Alien skull in Predator 2 but i was wrong
This was back when i was 8 or 9 in the 90's.