I've done the "quit my job on an impulse" I used to work for Kohl's, so I understand where you are coming from. My last ex was caused by me acting on an impulse (I need to start paying more attention to my sixth sense that warns me about these things)

I could list alot of things I did on an impulse or just because I was bored at the time. I usually have trouble keeping my mouth shut as well. I tend to say things only for the sake of getting a rise out of people. Nothing hurtful, just weird and sick observations that make them stare at me in dibelief or back away slowly...