When our cat Stuey was a baby, he LOVED to jump on top of the iguana cage. He could look down and watch Max (the iguana) crawl around, plus the heat lamps made it very warm up there!
Max HATED having an audience, so we tried to discourage Stuey's habit. We discovered that he got u there by starting on the back of the sofa, jumped onto the dinette table and then directly on top of the cage.
Well, we REALLY his plans! Our (glass topped) dinette table had a removable top. We hardly used the table anyway, so we took the glass off and stored it in the closet. That night, Stuey took a running start, jumped onto the sofa, jumped toward the table....and sailed right through the open frame and onto the floor! We were laughing hysterically for at least a half an hour. He was embarrassed and sulked under our bed for a whole day.