Orange You Glad I Didn't Say...Comic Mashup Theater Presents?

Only one creature uses echo location and haunts the night

telling jokes on Comic Mashup Theater:

 Echo...echo...echo...

A Robin told me this one, It's an oldy but a goody...A Knock Knock Joke.

 No, that's not how that joke goes...

 OK, let me try that again.

 Never follow kids or dogs Batman.

 Orange you glad I didn't say banana?  or Chrome Cantaloupes?

* Not all detectives are dicks.  But Batman is, even in the New-52 Universe.