EVERY SINGLE TIME IT HAPPENS, SQUIRT HER. IF YOU DON'T CATCH HER IN THE ACT, CARRY HER TO IT, SQUIRT HER, THEN PLACE HER IN THE LITTER. SHE'LL GET THE MESSAGE HOPEFULLY, YOU'LL CATCH HER IN THE ACT!! SOMETIMES YA HAVE TO HAVE MORE 'TUDE THAN THE CAT!! GOOD LUCK!!