
TTS. I have had the same with a good but inexpereinced Mum. It can be exasperating when Mum goes into a nice quiet litter gets them all riled up, and then flees the scene leaving them squawking their heads off (leaving me to quiet them down so neighbours don't have a chance to complain), but it is the only way to go allowing her easy access and egress from the pups.
Like with people they need to learn how to be mothers and the only way they can do that is to be allowed to make their own decisions.
The same bitch with her next litter was Oh so relaxed, and quite capable of telling her offspring that they weren't allowed to feed without having to run away from them, she had the same number of pups both times, but she had become more confident and asertive with pups.
As for the ear injury, how about a cowl for her head like the Afghan and Cocker people use to keep the ears out of food dishes???