A great episode! Bernadette is again a highlight of this one. I loved her saying that Howard's mom had a heart attack because Bernadette has sex with him and she can't. And the end with her using the word "putz" and sounding completely like Howard's mom which he found sexy was just perfect. Sheldon with his worries about the germs was also a wonderful part. I already loved him with the water, but where it brought him at the end was especially funny.