We like this modest piece of street-art, spotted at the top of Broughton Street.
The sticky-looking intruder raises interesting questions about anticipation, hesitation, decision and action.
Its unrealised sting complicates the black-and-yellow space of the fascia designed to speed pedestrian motion. It re-complicates the requirement to 'cross with care'.
We don't say it's great art, we don't say it's the most profound philosophy ever, but it pleases and it does enough to provoke consideration.
That's certainly more than could be said of most pedestrian crossings we can think of. If only all street furniture were so interesting.