Parasitic drain on 12 volt DC electric circuit

People mean all kind of loads when talking about parasitic drain. There is no such thing unless something is shorted. If it's under 2A, this is control circuit of LP fridge and radio clock and LP detector (and possibly CO detector though they are often on AA batteries). If there is a lot more current, then something is running or there is a short. Like people said, if you want to stop all drains, ex. in storage - disconnect the battery.