simple matter
Its the simple matter that the o'ring causes this problem, thus the reason i use any kind of lube ( Not Oil ) on the threads and especially the o'ring.
Why do you think when these people wearing Latex simply use talc before putting it on ( NOT THAT I KNOW ANYTHING ABOUT THIS SUBJECT
).
If and when you get it off and you dont have any lube floating about, ask your mum for some vasiline or her KY jelly..
.
Another Helpful hint for the day
.