Unless you have an extra bowl, or can get someone else to make dough for you (think local bakery or restaurant) you are up that proverbial creek without that all important paddle!
If one of the bowl tabs (sometimes called “ears” has broken off there is no way to stabilize the bowl during mixing so the hook doesn’t begin contacting the bowl. When this happens look for discoloration and metal in the dough or if you really draw a bad hand, you might also be in the market for a new hook. I would think that you would be able to find a shop to re-weld the tab back onto the bowl for you on an emergency basis. Aside from metal fabricating shops think auto repair shops, trade schools, check around for someone advertising their services as a welder. It’s just stainless steel so it isn’t hard to weld…no rocket science needed.
Tom Lehmann/The Dough Doctor