It might be the first Halloween without Ozzy, but the Osbournes are remembering the late rocker in an adorable way. On Friday, Kelly Osbourne shared a silly video of her two-year-old son Sidney, biting the head off of a stuffed bat (just like grandpa once did!) and letting out a giggle. “Learned from the greatest, Papa!” Kelly captioned the post, which she soundtracked with “Crazy Train.” Of course, the infamous bat incident occurred during one of Ozzy’s solo performances in 1982. During a