Are there rules for things like splash damage?

[Ghsdkgb]

I know there's spray weapons, where you basically split your weapon roll into two rolls to hit two targets. But what about things like hand grenades or holy water balloons? If it's big enough, it should have a better chance of hitting the target even if the initial throw misses, right? Especially if they're standing near a wall you can splash off of or if you hit the ground at their feet.

Is there anything in the rules or pre-homebrewed that allows for this?

[sinker]

Hand grenades are well represented by a weapon that provides a zone attack. You could always run it like a potion that way.

As far as splash damage being harder to avoid, you'd probably have to represent that by invoking aspects.