i used to scare one of my cats for fun, for whatever stupid reason. would just jump at it real quickly, thought it was funny when she ran away.. the cat proceeded to shit on my bed and make it her personal litter box at every opportunity she could get.. literally a few times a week. i learned my lesson, never yelled at her, just realized that this was her way of getting back at me, good for her for sticking up for herself
since then, we've made up, and we are on good terms. boy did i learn my lesson. i love dogs, thinking about this thread, i may go out and buy one this week