What about other household pets attending the euthanasia?
It may be a good idea to let other pets in the household see your pet has passed away, especially if they seemed to have a close relationship. In fact, many families have chosen in-home euthanasia in part so that other pet family members may be present. The only time it may not be advisable for the other pet(s) to be there is if they are the kind of pet that would be disruptive during the procedure, but most will settle down after the initial excitement of having a new person come into their home abates. Some owners prefer to have the other pet(s) separated until after the euthanasia process is complete.