Fig-leaved Orache
This is something you occasionally see. It has leaves of similar shape to Fat Hen but narrower.
Additional Images
Click on the images to see a larger version.

Babington's Orache
Black Mustard
Borage
Common Penny-cress Thlaspi arvense
Fig-leaved Orache
Hops
Pignut
Watercress
White Dead-nettle
Wild Radish Raphanus raphanistrum
Wild Strawberry