On 10/01/2018 01:54, Bill Wright wrote:

Some old people are gratuitously offensive and aggressive. Or so my
friends keep telling me.

Bill

There are a few on this NG.

Seriously, one of the main reasons for ending up in sheltered housing is
brain deterioration. That can take the form of damage to the frontal
lobes, which normally regulate what we say. Normal people may feel
angry, but they filter what they actually say. After damage to the
frontal lobes, that filter is removed, and the people become
disinhibited. It's not something they can control, as the control
mechanism has been destroyed.