In no particular order:
that WordPress links sometimes work and sometimes don’t;
that hot smoked salmon tastes better than cold;
that evergreen trees lose some of their leaves each year;
that not everybody likes cats;
that some humans can be totally convinced that they are right about an idea or belief;
that my claws don’t stay sharp;
There that’s enough for today……but as you may have guessed it’s #1 that bothers me the most.