In no particular order:
Left pole behind (also ladders when trad)
Left warning signs behind
Put 600L into a 400L tank and flooded van
Not filled van tank and run out after first house
Driven off with 240v oil filled radiator still connected and ripped socket off of wall
Forgotten battery
Forgotten trad gear when pulling up at factory offices to do insides
Forgotten payment slips
When trad unsecured ladders flew off of roof rack
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