(Jungler focus) - Early game trolling

In an attempt to try out something different I locked in Heimer jungle. I headed down to blue and set up 3 turrets between blue and gromp. My bot lane then decided to pull gromp away from my turrets toward bot lane and purposely took the gromp kill from me. I did the usual "???...why", and proceeded to continue clearing the jungle but I was already put unbelievably behind it was infuriating. The ADC that took the gromp gloated about it in team chat, fed a couple deaths and then afk'd to force a quick end to the game. I could not recover from being put behind like that, I struggled to quickly clear the rest of the camps and was unable to gank at all. The level 1 gromp steal literally destroyed my ability to have any impact on the game.

Now I play a lot of non conventional junglers, I get a kick out of it, and this is not the first time I've run into this type of situation before. I wonder if maybe there needs to be slightly less emphasis on the early jungle camps to avoid being affected so drastically in solo queue by people like the ones I ran into today. BUT, if there continues to be this specific early start jungle setup, can we PLEASE increase the penalties for players that purposely impede junglers from getting the start they need in order to transition the game.