Devastating Charge (Hecarim E) and Blast Plant
So, if you're trying to get away as Hecarim and your e becomes available it helps - a lot.
Know what else helps? Blast plant.
Know what doesn't help? Being thrown in a random direction because as you hit the plant you start dashing through it.
I have been thrown in about every possible direction when using my E on the blast plants. The way it seems to work, is if you kick it from maximum distance you get returned in the way you came, and if you get close and then kick it you get thrown in the direction you were going. If you misjudge that distance and kick it from juuust too far away, you start getting sent in completely bizarre directions. Literally any possible direction. Yeah, it can be funny and it can pan out... or it can throw you back over the wall into the river you just ran from and since it consumes your E you're boned.