Gremlin 2 sounds like a switch that needs adjusted closer. Gremlin 3 sounds like a switch that is adjusted too tight and closes from vibration. Gremlin one is def strange but may be one of the tilt swiches is adjusted to closely and vibration causing a closure there as well. When checking switches use a ball instead of your fingers to close the switch. You can push the switch done further with your finger than what the ball does.