B.F.T.

Bacon, Fish & Tomato?
Big Friendly Trout?
Bureau of Fair Trade?

No. . . Bird's-foot Trefoil (Lotus corniculatus)

I was down at the shore this afternoon taking some images amongst the vegetation growing above the high-tide line. This is one of them.
All the while I was surrounded by big black flies that I have since found out were giant midges called St Mark?s fly (Bibio marci). I didn't get anything blippable from them though.