There are other reasons that wrecks cause fan excitement--e.g.
( There ( are ( ( other reasons ) ( that ( wrecks ( ( ( cause ( fan excitement ) ) -- ) e.g. ) ) ) ) ) )
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (JJ other) (NNS reasons)) (SBAR (WHNP (WDT that)) (S (VP (VBZ wrecks) (NP (NP (NN cause) (NN fan) (NN excitement)) (: --) (NP (NNP e.g.))))))))))
Wrecks are a small reason for fan excitement. 
( Wrecks ( ( are ( ( a ( small reason ) ) ( for ( fan excitement ) ) ) ) . ) )
(ROOT (S (NP (NNS Wrecks)) (VP (VBP are) (NP (NP (DT a) (JJ small) (NN reason)) (PP (IN for) (NP (NN fan) (NN excitement))))) (. .)))