I'm 19, and when i was 16, my best friend thought it would be funny to hold me down and shove a dip of her boyfriend's chew in my mouth, which i accidentally swallowed a little bit of and ended up puking for 2 hours. And a few days ago i found out my mom has cancer, and i've been reading alot about cancer and how to prevent it, and one of the main things is stay away from tobacco. and now i'm worrying that i could possibly get cancer someday because of her doing that. if it happens because of her i will hate her forever. do you think that makes my chances go up?