Okay, so, the last couple of days I did some GRD games with Rogue Scientist. Figured the skill had been around for forever, it was high time I tried this out. I had this happen many times, though not nearly even a majority. Probably tossed out 200-300 canisters over 3 games, and crashed maybe 1-2 dozen times. Every single time it was throwing the Canister into an active zoo. Every, single, crash. And after the first one or two, when I realized how the skill worked, I was very careful not to throw it at squares where a monster was or that a monster was blocking. However, it often landed on squares with corpses. And I am nearly positive this crash only happened when I threw the canister onto squares with lots of corpses (and again, 100% sure it only happened in active zoos). Sadly, I had no saves, cause PD and it not being a big issue, so I just kept playing, but now that I know it's an issue that needs more research, If it happens again, I'll get the save to someone. Hope that helps.