Walked out of J4 ultimate

Hi, I'm sorry this isn't a very good post, but I thought I should report it anyways.

A couple weeks ago, I was absolutely destroying as pantheon top. My team pushed to mid inner turret; and I was lutes by J4 next to the bottom red buff jungle enterance.

I panicked, (cause jarvan flashed and ran away , I also had turret aggro) and started clicking the outside of the ult to try and get out - I ended up walking through the ult and got the kill on jarvan.

it might have been a one time thing, and I'm not sure you can reproduce it, but I figured I should report it anyway. So that you guys can look into it.