EOTGTIPNWTTITTTI: If Elaine just called to ask why the carpet is wet, that clearly indicates that a) she's where the carpet is, and b) you are not.
Since you're asking what to tell her, the implication is that you know why the carpet is wet, but don't want to tell or admit that and are looking for something else to tell her, which further implies that there is some guilt associated with the carpet being wet, or the reason it became so.
Now, if we analyse what we know about Dino. . . .
nnnnnnnnnnnnnnnnnnnnnnope. Not gonna finish that.