If anyone suggests that you keep your eyes on their pets for a day before you agree check their pedigree and see if theyβre wild or theyβre tame.
Ask them to tidy your room or set up the table for dinner; if with roaring and noise they eat your soft toys you probably should reconsider.
For the snarling beyond the locked door there may be a straightforward reason; to be on the safe side put your brother inside and see if he ends up eaten.