Here's the thing... Mom has declared the bed 'Switzerland', neutral territory where there is no fighting or all participants are banned for a period of time.
So we may 'accidently' chase the kitty around the house at times and he may smack us when we walk by BUT very rarely on Switzerland
Sometimes, we even lick each other! Sam has even tried to clean out Chico's ears!
Besides... even if we did fight on the bed... that big purple thing in the picture above is mom's leg and neither of us is dumb enough to fight in mom's lap!