I always use a butter knife slide into the gap between lid and glass, twist knife till you hear it pop. You can feel when knife is in the right spot, it’s slightly more open. Works every time
As a very green kiwi kid on a school trip to a farm, felt the call of nature so ducked behind a barn, and as boys do , well I spied a fence and peed on it #€+* electric fence. Never again 😆