Wario would be seen splashing around in a bathtub full of gold coins. (Which he presumably stole...)

Eh? Hey, You! Whatcha doing in here!? Get outta here, This is MY gold! Nobody else touches it! Scram!! He said while shooing you away.

Ah! He tried to scare you off but...it wasn't very effective.

Aaaaaarrrgh!! What do you even want?! He said while staring at you, hopping off of the tub full of coins.

From the looks of it, he is GREEDY. Very greedy of his posessions.