At what point do you throw out a chair?  Would you trust it to sit in it?

What the hell kinda sofa repair is this?

All is fine and dandy till the fake wheel pops off and you take a tumble out of the chair.

"My home office chair broke and became un-useable.  With some duct tape and a pop bottle it was all fixed up."

"Visiting a friend.  Their neighbors' dog broke one of the pickets on the fence between the backyards.  They used a folding chair lounge to "repair" the hole."