Mark sez

Hey, you know, it could be pretty handy to have an eye there. Like when you drop a quarter on the floor and it rolls under the refrigerator? Or when you get an eyelash in your eye and it's really hard to see where it is to remove it because it's, like, in your eye.

Note to gun nuts in the audience (and with all the weapons research I do for this comic there'd damn well better be some): The railgun design began its life as a Daniel Defense M4 Tactical Carbine. Then it became increasingly silly.