i've been reading a lot of stuff that's reimagined vampiric weaknesses as the vampires actually being incredibly nerdy. "I stay inside a lot so the sun bothers me" "I can't enter houses without being invited because it'd be rude and I'd feel awkward" and I am so down for this
*original* canon is that you can keep a vampire from chasing you by throwing a handful of seeds or the like because the vampire will compulsively count them