This happens when I have a 47k pull down on the gate (or no pull down) and also when using any series resistor, 100-390 Ohms between the IO and the gate.
The drain is connected to a hacked 12V piezoelectric humidifier mister, which pulls about 200mA. Previously I was using an NPN transistor, at one point I noticed it was getting very hot (anomalously). Also when the gate is floating, sometimes it will allow current through the drain. Also sometimes the loads may be disconnected, could this damage the MOSFET potentially?