May I snitch on my sister?
why would you snitch on your own sister?
I just don't want to have anything to do with her at all.
If you don't want to do anything with her then distance yourself from her. Snitching on your own sister is not alright. It's petty.
She is a pothead. I hate people who smoke pot.
You can have your own opinion on people who use drugs, but she is your sister and it's unfair to judge her solely on her habits. She might be using it for medical reasons, so why not just try to ask her why, or tell her to smoke away from you? Family should always be there, thick or thin!