The ones I find the most annoying are the plastic bags of prunes, dog kibble, etc, which have a tear line across the top with a small slit on either side.
Sometimes they tear completely unevenly and even damage the resealable seal but mostly they do not tear at all, requiring the use of scissors to cut across the dotted line.
Then to add insult to injury, they often will still not open, thus requiring a second, and sometimes a third cut with the scissors.
Another bugbear is Leggos Stir Through Pasta sauce bottles which have a taper on the side of the metal lid.
They are sometimes too well sealed to undo by hand and the metal jar opener we have cannot get a grip on the tapered edge.
A bang or two on the side generally loosens the lids up.
Of course, many years ago, it was the sardine tins which required the opener which was soldered to the base of the can, but the tab would often simply break off.
PS.
The clip seal bags which will not reseal properly after being opened.
The most idiotic of all, the “resealable” bags for frozen products like Inghams Buffalo Wings.
Even if one manages to actually achieve the incredible feat of opening a pack without destroying one or both ends of the clip seal, one has more chance of winning Lotto that ever successfully getting it to reseal, thus requiring the use of a rubber band.
