This is a very interesting thread. I don't have time to watch the videos, but I can imagine what they hold by reading all of your responses! So hard to see animals treated as playthings rather than with respect and caution.
I have many animals that coexist in my home. I agree that allowing ineractions between pets has to be done on a case by case basis with the knowing consideration that they are ANIMALS and as such might always have a reaction or response that you might not expect.
I have several combinations of my pets out at any given moment. But I know who likes who and who is bothered and I would never force a interaction on any of my pets. I watch them every second that I have them out and NEVER leave the room even for a moment. I watch carefully to make sure there is enjoyment on all sides and if not..back to the cage they go.
Just in case you are curious, here is a list of my pets.
1 Grey tab - Gizmo
1 Bk and white tab - Perlz
2 Fancy rats - Nibbles and Puff
1 Dwarf Hamster - Teddy (elderly)
1 30 gallon fish tank with assorted fish
2 Senegal Parrots - Patience and Kermit
All my pets are well cared for, have reg. trips to our local vet and are ALL strickly indoor animals.