Think Before You Tax
Now, hear me out here. Personally, nothing bothers me more than a guy/girl coming into my lane after some event or just because and taking several if not all of the minions there for no reason other than they want farm.
Two situations where this doesn't bother me: We need to shove lane so we/I can X. Y needs the farm for Z.
Outside of this, I can't stand someone doing that, especially if I am already behind in some fashion or really need the gold. Worst people I see is the jungler and he/she got the kill(s) or if they failed to do anything meaningful (I mean no summoners or even denying the enemy laner some cs). I don't mind a few, but more than 3 is pushing it. Also don't take a cannon please.
OK I'm done now. Just please think in the future and we can all win together. You wouldn't want me to do it to you, would you?