Starting Problems?

I have never had any problems with my jeep and it has 109000 miles. Tonight I had been out driving for my work and stopped somewhere for about 10 minutes. When I came out and tried to start it up it would just click once and do nothing. I had plenty of juice in the battery. It's a standard so we push started it and it started and ran fine. I got home and turned it off and went inside for a while. When I went out to pull it in the garage it started fine. Any ideas what is happening? It has the 4.0L. Thanks

sounds like a heat soaked starter to me

What do you mean "a heat soaked starter"?

Never mind. I just did some investigating into "heat soaking". This could possibly be the problem. I also was thinking it could be the ignition or a bad connection somewhere. Has anyone else had this problem?

So what the hell is a "Heat Soaked" starter?
I know that mine gets filled with mud and i have to hit it with a hammer to get it to start. Is that actually heat doing it not mud?