Quality of Life: Tahm Kench
Nothing is more frustrating that devouring someone, trying to save them from themselves, you take two steps and jump out because they are trigger-happy and/or don't understand that they can sit in for six seconds and that jumping out delays you as if you were casting a spell. 99.999% of the time you try to support and help you go from saving someone to either dying instead as a result of their jumping out, or worse giving a double.
Not asking much, just when devouring a teammate, that it doesn't interrupt orders (like Nami) or delay when they decide they don't want the ride and hop out. CD is punishment enough for miscalculations, but this is punishment for something completely out of your control and doing what you're supposed to be doing.