No sweat Bw, it is normal. Mine gives off a drip or two on occasion of a long hard day of playing.
It is just a little blow off from the pressure that builds up under the pistons as they come down after firing. The blow off is designed to eleviate the excessive pressure builup in the lower case of the motor. It helps to keep the case sealed up and prevents blowing out gaskets as well.
Not a worry unless you get a lot, all the time. Then most likely it is over filled with earle.
