Is there any innocent explanation for this?

[molly_o]

The other day I was sitting in Starbucks at lunchtime, not too far from the spot where people wait to pick up their drinks. There was a couple standing there, and the way they were standing/speaking, I could hear his side of the conversation clearly, but hers was like the teachers in Charlie Brown specials -- wah wah wah. So anyhow, this is what I heard:

man: How'd everything go?
woman: Fine, wah wah wah wah
man: You picked up the car?
woman: wah wah wah wah
man: No sign of the police?
woman: wah wah wah wah

Maybe it's just me, but I can't figure out how a conversation featuring the question "no sign of the police?" could possibly be discussing something completely legit and above-board.