Can a non-Catholic receive Communion?
The smarty-pants answer is that it happens all the time. There’s no security check at Communion stations. Ushers seldom rack up more than a couple of Communion-line tackles in a long career. So every Sunday just about everyplace, a Lutheran or Presbyterian or Druid sneaks in. Perhaps the person has not read the statement of the U.S. bishops printed in the worship aid about who’s in and who’s out when it comes to Holy Communion. Perhaps they are operating on the theology of their own churches, which can be summed up by saying that once you’re in the water, you’re at the table.