You mind your own business. You climb the tower. You've done all you need to do up to this point. Everything's going your way. You focused on melee and you're quite stronk. Then you see him. Party's over. It's Maneater's house now.
"Fun? In my house? Not allowed!" says Maneater. Maneater also says skree.
30 tries later, this you.
If this has happened to you, you may be entitled to compensation for mental trauma. Just call (444) GET-REKT and discuss your options today.
Seriously, this boss doesn't get any easier. I think I got lucky the first time.