Oops, my steel shelf broke down

That Indonesian quotes "Sepandai-pandainya tupai melompat, pasti pernah jatuh juga" (Though squirell is a jump expert, it used to fall, don't know if this translation is right. Hahaha) is really happens.

I'm an Architect and i should know whether some structure of anything is right or wrong. It happens in my office or let's say in my shop. I made a shelf for displaying my paints. The shelf made by hollow steel. I've designed the shelf structurally right but not give the joint details to the shelf maker.

Once the shelf finished and they delivered the shelf, I told them that the principal of their works is not right and surely someday the shelf will break down. But they insist that the shelf is strong enough. I ran out of words and accept that.

This day, after about 2 months, the shelf is broke down and almost hit me. Thanks to Jesus, who protect me from this horrible accident. And, you know that? All of my paints is safe, except 1 piece ceramics broke to small pieces.

So... i think I'm a dumb Architect. Hahahaha..