I'm pretty easy going if it's an honest mistake and I'm not into hell, fire and damnation. My frustration comes when simple precautions are not adhered-to and a blatant disregard for the common goals. I've seen my share of "lone does" only to have them get close enough to ID them as BB. BF is right... first deer in the field is often a BB.
Bring in a 70 lb BB, well... any of us can make such a mistake. Bring in a 40 lb BB with a short little round head and short snout and shrug your shoulders, you're disrespecting all involved in the club trying to do the right thing.