Thank you guys in advance for your responds.

I've bought a pair of speed play x2 pedals from e-bay site. It described as a good condition but also said the cleats may need to be replaced in future. But still they have a lot of mile to go. My question is that I've been fallen three to 4x and my right foot cleat didn’t uncleat itself when I fell. I normally uncleat my left side when I'm going to stop. Some time I do both feet. I have injured my right knee and ouch, my new bike from these falls. How ever it happened when I get to stop in intersections which I begin in advance uncleat my foot most of the times . When I begin to stop, I lean to the right when I stop some times. The Wright foot cleat make me fall and my foot stays cleat till I undo my shoe and take my foot out. And embossing enough from the falls. Then I uncleat the shoe while I’m lying under my bike. Do I have a bad right side cleat or there is something else I don't do Wright?

Didd all thoose fells damege the lengauge sentors of yur brane?

Sorry for the gramer and spelling. I had to type it quickly at my work and English is my second language.

speed play cleats can be affected by over tightening the screws. However in my experience that tends to affect the ability to clip in rather than clip out.