my snake tried eating a mouse tail first

it tryed to eat it for like 10 minutes then i decided to try to move the mouse to make its head me near the snakes mouth but when i started to move it my snake started constricting it really tight... i thought the mouse was going to pop... then it loosened up and i took the mouse away quick and gave it back so they were face to face and my snake ate it quick.

it was a stupid thing on my part because the snake could have thought my hand was a mouse but ive never seen my snake strike hes way to shy. but when i take him out hes very interested in his surroundings

i have to start feeding rats.