Smoothie Criminals

I have a knack for spotting trouble just before it happens. I would have made a brilliant cop I reckon.
Take these two for example. Harmless grannies, right? On the surface only. I knew they were up to no good. I stopped the bike and waited a bit. 
And sure enough, they slurped their smoothies in record time, stood up and dashed down the street without paying. 
The waitress never caught up with them.
She'd have had a better change of catching up with Hussein Bolt. 

These were evil grannies on steroids. And tropical fruit smoothies. 

I wish I could have taken a decent photo of their escape but all I have is a faint blur of blue and purple flowery trails disappearing down Nassau Street...