MY sim peed on the bush....?!

Once or twice when i made my sim go to the old man in takemizu village ( Bon voyage expansion pack), my male sim needed to go to the bathroom and peed on a bush!. there were no toilets and i tried it 3 times or more and it only happened twice! This was possible when he got home: you could click on ANY bush and t would say pee here!. I'm trying to do it again but nothing happens! I don't want to use that stupid thing called moveobjects on, thats cheep!. is there any way that i can do it again!? or is there a special download that my sim will pee on that certain tile!. Am i the nly one who knows this secret!?!Www@Enter-QA@Com

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