That Magic Mouse really is the worst, because of its multitouch surface. Completely uncomfortable to hold and overly sensitive to any touch. You have to be careful using it, always being proactive about not touching the top.
Same issue with the Apple Remote on Apple TVs, you always have to be careful about touching any of it, otherwise it’ll wreck your Apple TV session by pausing something or starting something you don’t want.
Just copy Logitechs physical scroll wheel. Multitouch shouldn’t be anywhere on anything that’s not a display, as it always requires attention to function. You can’t just rest your fingers on it and continue on as if it wasn’t there.