This ticks me off time and time again. Not only if I'm just playing support, it happens with any role but especially when I play support- I'm clearing a pink ward, and I had been there clearing it for almost the whole time- 3 slots, and someone comes in behind me and takes it.
Like wtf?! That was mine, you ****. Supports are already at a gold disadvantage, so let them have that freaking 30 gold. You all can make it up in one minion wave for pete's sake.
Ugh. Don't steal stuff from people who clearly were there way before you and were about to get it for themselves. It's called being a sportsman like player. Sheesh.