My pet peeve is stupidity and those who don't time to read the ENTIRE ad.
I say in big, bold red letters....
NO TRADES!!! And still...about 80% of the people that contacted me are trying to trade me their junk. I say...NO LOWBALL OFFERS!!! And still....I get people offering thousands less than my asking.
I also hate guys that attempt to negotiate with me over the phone. I mean...ok...ask me if I'm willing to budge on my price and I'll give you a straight answer...sure. But don't sit there and expect me to entertain an real offer you're trying to make when you're too lazy to get into your car and drive down to take a look at it before doing so. This isn't a pair of oven mitts on EBay you're buying, ya tool box!!! I can't count how many times I've asked people to hold off on the negotiating until they actually see the item in person, only to never hear from them again. I mean....WFT....why bother contacting me at all?
There are many other little things that get under my skin, but these are my three biggest peeves. At that point, I'm not even nice when I respond to them. I've told many a tire kicker to to **** themselves, or to trade their junk someplace else and not to bother me again until they've got cash in hand.
Had one guy contact me 5-times over the month and a half I had my last snowmobile for sale. He kept making me the same lowball offer every time with the same "it's not worth any more than that" sarcastic undertones. I actually kept my ad up another two weeks on purpose after I sold it (for well within my asking range), just waiting for him to hit me again.....and yep, he did.
I then in a very nonchalant tone told him I'd completely forgotten about the ad and meant to take it down weeks ago. I then calmly said to him I'd actually sold it for a couple hundred more than my asking price (even though I hadn't) because of a bidding war a couple have guys had gotten into over it (which had not happened either) and that it must have actually been worth more than he thought it was. I then very politely said..."Ah well, ya snooze ya lose I guess. Maybe you'll make a reasonable offer right up front the next time you want to buy something, instead of dicking people around and wasting your time. It's too bad too. The time you spent trying to be smart and lowballing me gave the next serious buyer the chance to snap it up on you." At which point I hung up the phone as he tried to respond and never heard back from him. It was very satisfying.