Um, No...The breaking of bread had been a practice ever since bread was invented...Else how were two supposed to share a single loaf???
So these guys are walking along and a fella they don't recognize pulls up with them and starts talking about things only Jesus would know...It gets near suppertime and a loaf of bread shows up...Jesus had just expounded to them everything is the scriptures written about him (and there was plenty)...Jesus takes the bread and breaks it...All of a sudden everything clicks...They both remembered Jesus' words, 'Whenever you break bread, remember my broken body, whick is broken for you'...
Nowhere, anywhere is it ever suggested that Jesus turns bread and wine into flesh and blood...Nowhere anywhere is it ever suggested that someone else turned bread and wine into flesh and blood...And nowhere anywhere is it ever suggested that someone will turn bread and wine into flesh and blood nor instructed to do it or what procedure is required to do it...
For you to pull a Eucharist out of this story in Mark is ridiculous...But the Catholics who don't read the bible anyway wouldn't know the difference...After all, they heard it from the guy wearing the long robe, the priest...
Then curiously they claim that ONLY their priests can properly "confect" the sacrament of that bread and wine into the body, blood, soul and divinity of Jesus in order for you to receive Christ and maintain your "state of grace"! You gotta go to THEIR guys if you want to go to heaven. What a racket!