then I started playing with my skills by pressing the button I assigned the ride skill + another skill at the same time the results were..interesting
first any skill with a cast time will have you hop onto your pet and lock you on the first part of that skill's animation with no skill effect taking place but wait there's more skills without a cast time trigger their effects and place you on the pet (some skills will knock you off the pet if the skill then hits a monster but not all of them will)
Then I used my ultimate skill and got stuck

(I'll post screenshots in a minute, other people may want to try this out I have only played with savage's skills so far)