Why on earth would you melt down? Been a dev for over 20 years and sure some days are a bit hard, but meltdown?
Best guess, you own the code, you own the product, and people keep breaking it.
I work for a great company, and we have a prime directive.
~"We believe that our coworkers have done the best they could, given the knowledge they had at the time and the situation."
So suggestion: Give your team more credit. Quit working where you work.