Caught in the headlights ....

B came round today, late afternoon.
I'm stuck for a blip, I said, thinking I'll not be so lucky as last time I said that to him, and he showed me the multi coloured raindrops on his car roof.
Got just the thing, he said.
Here it is, giving a whole new meaning to being 'caught in the headlights'.
How on earth did a spider ever get in there?