[EDIT] Figured it out... Empty hand while holding down SHIFT. I recommend putting this up top in the details for the Mod.
One thing I've found that I'd consider a bug is that the dogs aren't smart enough to stay away from cactus or lava. Especially with how many dogs are in the level, they're often killing themselves when you'd think they'd know better.
Yes! and its not a bug, The dogs take on the AI of Wolfs, the reason you see this happen is because they mass populate, which as nature intended(some must die)
but on a serious level, I have been working on a modified wolf AI that I will release as a Beta sometime within the next 3-4 months(should fix the issue, indefinitely.)