's a part of us that can not help be entertained by the sight of someone getting away with something 
(ROOT (SINV (VP (VBZ 's)) (NP (NP (NP (DT a) (NN part)) (PP (IN of) (NP (PRP us)))) (SBAR (WHNP (WDT that)) (S (VP (MD can) (RB not) (VP (VB help) (S (VP (VB be) (VP (VBN entertained) (PP (IN by) (NP (NP (DT the) (NN sight)) (PP (IN of) (NP (NP (NN someone)) (VP (VBG getting) (PRT (RB away)) (PP (IN with) (NP (NN something))))))))))))))))))
(ROOT (SINV (VP (VBZ )) (NP (NP (NP (DT ) (NN )) (PP (IN ) (NP (PRP )))) (SBAR (WHNP (WDT )) (S (VP (MD ) (RB ) (VP (VB ) (S (VP (VB ) (VP (VBN ) (PP (IN ) (NP (NP (DT ) (NN )) (PP (IN ) (NP (NP (NN )) (VP (VBG ) (PRT (RB )) (PP (IN ) (NP (NN ))))))))))))))))))