▁or ▁physical ▁training ▁directed ▁by ▁trained ▁DI ' s / PT I ' s , ▁or ▁to ▁push ▁an ▁individual , ▁or ▁a ▁group ▁harder ▁to ▁improve ▁their ▁overall ▁performance . ▁ ▁Histor ically , ▁in ▁the ▁R AF ▁a ▁be ast ing ▁could ▁be ▁something ▁as ▁innoc uous ▁as ▁increased ▁shout ing ▁at ▁rec ruits ▁by ▁a ▁DI ▁to ▁teach ▁discipline . ▁ ▁Within ▁reg ulations ▁and ▁NOT ▁necessarily ▁an ▁uno fficial ▁method ▁of ▁pun ishment ▁as ▁it ▁can ▁mean ▁in ▁the ▁Army ▁for ▁example . ▁Bed ▁Pack ▁- ▁Sometimes ▁called ▁a ▁bis c uit , ▁bed ▁block ▁or ▁box ▁bed ▁is ▁a ▁squ ared - off ▁assembly ▁of ▁ 2 ▁sheets ▁+ ▁ 3 ▁blank ets ▁wrapped ▁tight ly ▁within ▁a ▁fourth ▁blank et ▁which ▁user ▁" m akes " ▁daily ▁before ▁work ▁with ▁pill ows ▁placed ▁on ▁top . ▁Be eh ive ▁- ▁A ▁close ▁formation ▁of ▁bom bers ▁and ▁f igh ters . ▁Be er ▁Call ▁- ▁Free ▁be er ▁for ▁all , ▁a ▁chance ▁to ▁sett le ▁any ▁disput es ; ▁fighting ▁except ed . ▁Be er ▁calls ▁were ▁for ▁many ▁years ▁held ▁in ▁hang ar ▁crew ▁rooms , ▁but ▁some ▁adult s ▁decided ▁that ▁the ▁risk ▁of ▁damage ▁being ▁caused ▁to ▁aircraft ▁by ▁a ▁completely ▁be es w ax ed ▁air man ▁was ▁too ▁high . ▁Be er ▁Le ver ▁- ▁Jo yst ick . ▁Be er ▁Tok ens ▁or ▁Be er ▁Ch its ▁- ▁M oney , ▁Pay . ▁Bel ly f lop ▁- ▁Land ing