i do understand where you are coming from Kalami as regards you MIL,my parents both retired were thinking of getting a dog..not a pup and i did think great it would do them some good...make my mother get out of the chair instead of watching crap daytime telly
but thinking about it and seeing there interactions with Biba i have now put them off the idea
they are very old school in there way of thinking as regards training of a dog and they consider what i do with Biba training wise as bribery
and a dog should just do as it is told because you TOLD it too
my mother did actually tap Biba on the nose once when she considered what she had done as inappropriate
i know shes my mother but she was told by me don't ever do that again
she wasn't very impressed
and i think we would fall out big time if they ever got a dog
i hope it all works out for you , your MIL and the pup...it can be hard making them see there is another way
good luck