I've done the shrimp head thing before. It's a little gnarly, but tastes fine-- especially if it's fried in tempura. Still moving might be a challenge for me.
It can't be worse than when a sushi place serves you the very-quickly tempura fried shrimp head along with the raw sweet shrimp body. And you're expected to eat the head, shell, antenna, eyes, and all.
Well, the eyes weren't too bad. And I might also add there's nothing sweet about raw shrimp. Gelatinous maybe, but not sweet.
suck em ....shuck em...eat
I've done the shrimp head
Better than whole shrimp head