I think a fuzzy would be more like an appetizer to a yearling BCI. Hell, I give my 3 foot Miami Corn adult mice, and she takes 'em down like they're nothing. My 8 month BCC eats rats.
Nonetheless, it's pretty odd for a BCI to tag you twice in 5 minutes. If you're feeding it frozen/thawed, try soaking the prey in hot water to warm it up if your snake won't take it. If it was hungry and sensed the heat from your hand, that could explain the aggression.
- Ken LePage