I've seen a bloody funnel web once in our house.
It's better to be polite to one of those...
The ones around here are usually quite friendly. The bite of the most poisonous one feels about the same as a wasp sting. They like water, but I don't think I've never actually encountered one.
Then again our snakes are quite lame as well compared to yours...
Time to give Bob a break and switch to reptiles?