Dutto
Landlord.
Now, I'm not very good at DIY (I'm horrendous!) but couldn't you take a very sharp knife and, after removing the centre bit, cut must of the way through the remaining bung and then give it a yank to tear the remaining bit? Sounds easy in my head. :lol:
Of course it's easy ... :thumb: :thumb:
... right up until knife (it has to be a sharp one) either cuts through the bung so that a lump falls inside ... :whistle:
... or nicks/cuts/bends the edge of the hole so that the next bung won't seal effectively. :whistle: :whistle:
You obviously don't appreciate just how clumsy I am ... :thumb: :thumb:
... and that Murphy's Law states "If it can happen it will happen."