What's recent RVing fails have you witnessed?

What have you seen that makes your blood boil, or makes you want to share stories with your camping buddies? Here's a few of my sightings:

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First Pic, is this his sewer line? I'm unfamiliar with motor home bits, but this caught my attention. (current park)

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Pic 2, watched this guy put away all his sewer bits, then his water hose and filter, and finally shut off his breaker and put away his electric with the same dirty gloves he started with. He had trouble closing the sewer lid and came back after he switched off the breaker with the same dirty gloves. Photo was taken after he had it all stowed. (yesterday)

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Watched a guy take apart his sewer components with gloves on. Handed every part to his daughter and had her carry them bare handed one at a time to his wife who stowed them bare handed. (2 days ago)

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Last year I witnessed sewer hoses on picnic tables a couple times. And, I watched a family of 5 show up with a camper in the morning, leave, and return with a box trailer in the site next door. Then the box and camper exploded with every version of toy, bike, cart, scooter, power wheels, lawn games galore (bags, tetris, connect 4, can jam, and a bunch I don't know), multiple pop-up tents, large corded electric fans and everything else you can imagine. The kids spent the day playing with water balloons. The family loaded it all back up and was out the next afternoon.

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We've only had our camper for 2 years, so I'm sure I'm guilty of things I don't recognize as odd, but common sense keeps me in check most days.