"I've been doing a lot of work for the Trucking Division of a large company lately. One of the company hands (self proclaimed in-house welder) apparently got his feelings hurt about the company outsourcing and decided to build mounting brackets to hang an additional aluminum fuel tank on one of their big rigs. After he was done, the mechanics hung it on the truck, filled it full of fuel and sent it down the road. Three miles down the road, the welds failed and sent this big mamma jamma skipping down the highway at 70mph, damaging the tank. Luckily, nobody was injured and the only damage was to the fuel tank. It's been a long, hot day hovering over a TIG torch but it's good to go now and passed pressure check with flying colors."