Doggone Dad (Patreon)

A man is on his way home from work. While carrying a package given to him by his co-worker. Before giving it to him, his co-worker said that "it is a rare item and should only be used when no one is at home." And coincidentally that night his wife and children were not at home because they were visiting their in-laws' house. When he got home, he tried taking the pill and it didn't take long for the pill to react quickly. The pill worked wonders and changed the man's physical form. Of course that wasn't what the man expected. The man screamed for help. But no one heard it. There was only his pet dog sitting in the corner confused. The changes continued, until he lost his human mind and completely become an animal. Elsewhere, the wife and son are on their way home, maybe they will be confused and surprised when they think his husband/dad doesn't come home and finds another dog in the house.