Morris Minor Owners Club

I have just fitted new grease nipples to the steering (5/16 UNF) as the originals were past their best and I wasted more grease than the joints used.
Anyway, once the joints have been greased the grease gun is virtually impossible to remove! - I pulled a new right angled grease nipple apart trying to get the gun off!
I have always twisted the gun to the side to release it but this doesn't work, I release the pressure with the release valve but it still wont twist off, so I end up unscrewing the end of the gun (knurled part) partly to enable it to be removed! Doesn't leak though!
Any body experienced a similar problem?

My problem is getting the gun to stay on without grease going everywhere except in the nipple.

putting an old (clean) piece of cloth the grease gun and greas nipple can help. So it A tip I picked up here a few years' ago

No leaks here - even without the piece of cloth! It's just a b****r to get off!

My grease gun has a button to let the pressure off to release the grip on the nipple. I thought they all did.