Transubstantiation is weird

I'm not Catholic, but both my son and daughter were baptized Catholic and attend a Catholic school. A couple of months ago Noah had to attend some orientation classes for his first communion. A big part of these classes is explaining transubstantiation, the belief that the sacramental bread and wine are transformed into the actual body and blood Christ.

In the first class they played a movie where Father Mike explains to little Joey (over lunch, of course) what the Eucharist is and what it means. Father Mike discusses at length the details of transubstantiation and the last supper and how the wafer turns into Christ's flesh.

As a non-Catholic, I can draw only one conclusion from this: mass is like a meal where you cannibalize Jesus. Which seems like a strange thing to tell a bunch of seven-year olds.