Sorry, but I have to disagree with you.
The card the guard man ( actually, the term is 'bouncer' ) holds up for Chas to guess is different. The side facing the bouncer, and which we see also on screen, is a rat in a dress. Trust me, I've seen the movie too many times.
Or don't trust me, but then Chas' line " Who's a rat in a dress now, huh, bitch? " wouldn't make sense.
But yes, telepathy is the key