▁A ▁r ider ▁who ▁falls ▁( or ▁is ▁e ject ed ) ▁off ▁the ▁back ▁can ▁land ▁directly ▁in ▁the ▁path ▁of ▁the ▁P W C ' s ▁high - press ure ▁jet ▁of ▁water . ▁Unless ▁a ▁r ider ▁is ▁appropri ately ▁dressed ▁in ▁gar ments ▁made ▁out ▁of ▁a ▁strong , ▁thick ▁subst ance ▁like ▁ne op rene ▁( as ▁is ▁commonly ▁found ▁in ▁w ets uits ), ▁the ▁jet ▁may ▁pen et rate ▁any ▁or ifice ▁it ▁reaches . ▁All ▁major ▁P W C ▁manufact ur ers ▁warn ▁about ▁this ▁risk ▁and ▁recommend ▁that ▁passengers ▁wear ▁wet ▁suit ▁bottom s ▁or ▁equivalent ▁protection . ▁The ▁American ▁W aters ki ▁Racing ▁Association ▁recomm ends ▁that ▁all ▁of ▁their ▁rac ers ▁wear ▁wet ▁suit ▁bottom s ▁for ▁this ▁same ▁reason . ▁ ▁Such ▁or ifice ▁inj uries ▁can ▁result ▁in ▁permanent ▁dis ability ▁or ▁death . ▁For ▁example , ▁in ▁ 2 0 0 6 , ▁the ▁California ▁Court ▁of ▁App e al ▁for ▁the ▁First ▁App ell ate ▁District ▁u ph eld ▁a ▁$ 3 . 7 ▁million ▁Nap a ▁County ▁j ury ▁ver dict ▁against ▁Pol aris ▁Indust ries ▁ar ising ▁out ▁of ▁one ▁such ▁incident ▁( which ▁had ▁dev ast ating ▁effects ▁on ▁the ▁victim ' s ▁lower ▁ab d omen ). ▁ ▁It ▁is ▁also ▁possible ▁for ▁multiple ▁rid ers ▁on ▁the ▁same ▁P W C ▁to ▁sust ain ▁or ifice ▁inj uries ▁in ▁a ▁single ▁accident , ▁as ▁actually ▁occurred ▁in ▁a ▁ 2 0 0 7