I don't like the recent shark attachment update in of the recent patches. The hitbox is super messed up now, if Fizz misses you (but not by much) at max range you will still be caught by the shark. It's rewarding him for failed attempts. If you are even close to shark while it's on the ground it while attach to you. The new thing to do would be to block off someone's escape with Fizz's ult wait for them to walk close to it and the shark will do the rest, rather than legitimately fire it someone.
I've had people on the enemy team go into all chat and be like "WUT" "LOL" because Fizz has clearly missed but then CHOMP, outta nowhere.