Snake ate food backwards

[Kmef07]

I wanted to post this a couple days ago when it happened but my snake is officially not a real snake anymore. lol. I decided to take a couple really young rats off my friend who started with a male and two female rats and after a month or so has 37 new babies and 4 full grown females. so they were free and considerably smaller than what my brb eats now so i got 3 of them and each one was eaten really oddly.

first one started off well with a good strike but a bad coil and eventually the rat stopped moving. when my snake uncoiled the rat started to breath again and its mouth was moving a lot and it was squeaking. but my snake decided to eat it anyways and it ate it while still alive without any hesitation.

second one it struck bad but had a better coil and held until the rat stopped moving but then it let go and the mouse's mouth started to open and close and was clearly alive and my snake decided to eat it from the butt end to the head end. I got my camera and started to take a vid of it and i will post it on here after i get it up on youtube. but it also ate this one backwards and alive.

the third one it ate was the best coil but was not dead when it decided to eat it and was squeeking until my snake got the head in it's mouth all the way and it obviously died then but still weird.

and lastly my snake doesn't seem to do a traditional coil it just seems to squeeze it between it's body almost like scissors. you will be able to see on the video but i guess the reason im posting is to figure out if this is somewhat normal or what. my snake is not used to eating live but it coils the dead prey better.