Bad grammar

 From the Associated Press:

The owner of an Annapolis trolley company says he’ll no longer offer wedding services because he opposes same-sex marriage.
Discover Annapolis Tours was a longtime fixture of the city’s wedding scene. The Baltimore Sun reports that the company’s decision to get out of the wedding business was publicized by a straight groom who was offended by the move.
Business Owner Matt Grubbs declined to comment on the decision beyond acknowledging that it will cost him $50,000 in revenue. He says he’ll post a full explanation on his company’s website by Jan. 1, the first day that gay couples will be allowed to marry in Maryland.
Discrimination on the basis of sexual orientation is illegal in public accommodations in Maryland.

There's a simple way to test your grammar.  For example, let's say you want to indicate that you and your friend are going to the mall later today to return some doo-dad.  If you find yourself saying, "Me and Fred are going to the mall..." just pretend that Fred can't go, owing to a late bout of common sense.  Would you, going alone, say, "Me is going to the mall"?

Likely not. And you can use the same test when you want to share with your friends that your Aunt Grizelda sent you an antique vinegar cruet for your anniversary.  Should you find yourself wanting to say, "That was a sweet gift she sent to Jim Bob and I" because, if you hadn't married Jim Bob (and your father urged you not to) you would never say,"It was a sweet gift she sent to I."

I'm not beating the drum for good grammar here, as much as I am for good citizenship.  Take the sentence:  
  the owner of an Annapolis trolley company says he’ll no longer offer wedding services because he opposes same-sex marriage

 and change it to

  the owner of an Annapolis trolley company says he’ll no longer offer wedding services because he opposes interracial marriage

or     marriage between Lutherans and Methodists

or     marriage between short people and tall people

or     marriage between Steeler fans and Ravens fans

and you'll see how using a little sense makes things better for all of us!