I keep my MacBook plugged in when using it on the desk, set to 80%, to stop it from having too many discharge cycles.

After a while i will experience current leakage in the form of tingling and vibration sensation.

Internet says I need a 3 pin plug. But the plug that Apple provides is only 2 pins ...

Is this constant shocking a bad thing and should I just unplug it and accept the charge cycles?