I want to throw a drink I bought for someone on the ground
Why waste money? Did you ever do it throw a drink on the floor before?
Actually I have done it to my other class mates for other reasons
Even if you think you have reasons for it you shouldn't do things like throwing drinks. You are makin a mess somebody has to clean and people will call you out for it.
It's just a drink not that big a deal.
It is a big deal to the ones who will clean it up. I believe someone needs to speak up and tell you that this is wrong to do. Why don't you save the money instead of wasting it, and making a huge mess for others to clean?