After telephoning some companies when the options offered does not include the subject you wish to speak about, and does not have a ‘for anything else’ choice.
Having made a random selection from the above, speaking to someone who agrees to put you through to the appropriate department and then the line goes dead.
Supermarkets who substitute most items with varying degrees of success, but make no attempt to substitute basics such as bread when they don’t have the brand you selected.
People who say “see you later” when you will probably never ever meet them again
The dreaded glottal stop - ma’uh instead of matter