"Never mind" Ping

I was thinking a good ping to have would be a nevermind ping. Like, I have a ping for MIAs but when it was a false alarm and they're back, I still have to say 're' or something of the sort. If I could just ping nevermind, that would fix it. Another use is that, say I'm the jungler about to gank bot, I ping that I'm going in but something happens and I have to make sure my bot lane doesn't still think I'm going in, so I ping nevermind. I was thinking the icon for the ping could be a U-turn, kind of like this