Not paying close enough attention to the electrical connection to the meter on the house. I got lucky that it was raining before we washed there though and sparks flew off the house. I about poo'ed my underroos and thought the house was going to burn down. The homeowner said the lights had been flickering for the last couple rains. I just wish I had seen it before and could've let them know before we got there. Not to mention my guy that was soaping the house with SH, a conductor, could've died.
Artillery fungus. If you don't set the expectation before you wash that the stuff just won't come off it will be on the one house, with the one homeowner that expects it ALL to be off.
Trying to do a big project that was over my head until the owner basically told me to go home and handed me a check to just give it up. I got really lucky. Now I sub contract everything I'm not equipped for or need more than 2 people for to the largest company in the area.
Taking on a job for $450 that was really a $600 job even though the couple who hired me creeped me out and I spent the entire time thinking I was either going to get stiffed or murdered in a creepy s*x dungeon. Now if I don't feel right about a project I just politely pass or bid it so high that it's worth the emotional agony.
Cleaning just about everything you can imagine on a house that was on the market for sale with the owner and I agreeing that I would get paid after the sale. I thought it's a sellers market and this person seems trustworthy. Got stiffed. Couldn't put a mechanics' lien on the new owners. Now if it's a house that's for sale I request payment upfront or I don't do it. This one still hurts because if I'm being honest with myself I could see it coming a mile away.
Keep emergency paper (toilet paper) with you at all times.
I could keep going....