Tell them you offered a silent prayer. Jehovah reads your mind right?
There's another thing that I have to get over!!! I always feel as if God is watching my every move, and He knows what I'm doing and thinking at all times.
So much leftover crap.
I went through a period when every time a group prayer was being given by someone and my eyes were closed, head bowed, a random thought would go through my mind completely without my control, or so I thought. It was a phrase silently spoken as a shout- "Jesus Christ was a sheep f----r!". It used to concern me and I worried I might say it out loud when I was offering the group prayer. Never did though.
To this day, if I pray, weird random thoughts come into my head... really vile things like the what was in the above quote. When I was a kid, it was because Satan was putting those thoughts into my head, and I had to just ignore them, and realize that Jehovah was stronger. But... it doesn't explain why it still happens.
More left over crap, I guess.