[quote=Blue Tempest]
There's also the unfortuate possibiliy that you drop it on your square and it explodes, and then sets off every other bomb on your person to explode as well XD
[/quote]

That actually is impossible to do. Alchemists dont carry bombs, they make them in the round they throw them. The bombs they make go inert after 6 seconds. In addition, a natural 1 for splash weapons functions as a normal miss and thus I roll for directional miss. It cannot, by rules, fall in my square if I threw it somewhere else.

Also, bombs and alchemical items not made with black powder are chemically active, so the chance of them exploding due to heat is almost none. To even make alchemist fire or alchemist ice activate, they must have their container shattered. Unless I take a sonic bomb mod, they do fire damage from an explosion, so that localized pressure difference would be minimal and there is not shrapnel to worry about. (If I threw an alchemical grnade, then sure it might set off one or two of my other titems if it creates the environment for it through shrapnel, but that would be a very low d% roll to see if shrapnel hits my vials rather than hitting me.)