My DH took one of those sprayers that you would use to spread herbicides with (the pump sprayer kind found at any local hardware store)....put it in the bathroom.
Encouraged my two DS's (then age 5 and 8) to use the sprayer instead of the toilet. No problem there - they thought it was rather interesting experiment! Labeled the sprayer, 'Human', in Sharpie marker on side...as opposed to 'Herbicide' sprayer. Yes, he bought two identical ones.
When 'full enough' DH used outside to deter groundhogs who were living underneath neighbor's shed on the property line (and making DH mad by eating our produce!). Neighbor is a very kindly 80+yr old gentleman, who's got enough going on with his dear wife's heath issues to NOT have to deal with this too....so with his blessing, we proceeded to 'encourage voluntary rehoming' of said groundhog.
DH sprayed the bejeebers out of that shed. To this day, 4yrs later, our dog smells that part of the property line and looks back at DH as if to say, 'you been here?!'.
Groundhog left that night. Don't know to where...but left immediately.
I HIGHLY RECOMMEND THIS OPTION! It does work.
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-- Blessed are the flexible, for they will not break. --