>>109363796No.
He's a fucking genius.
He'd know how to communicate with her nonverbally and be able to figure out that she knows how to read movement.
It would be easy for him to create a scenario that a smart woman like her could figure out.
Just set things in a way that she could see and figure it out.
Hell he'd even do interpretive dance that she understands completely to fuck with her.
It would be Dick and Cassandra standing there trying to figure out what the riddler is doing.
But the riddler knows that cassandra is there so he leaves a video rather then a letter.
They'll cue it up and it will be the riddler standing there and he'll do a dance and mime and other stuff.
Dick will audibly say "The fuck..."
Cassandra will look at it silently studying it a big exclamation mark pops up above her head and she runs out of the room.
