Sometimes it is necessary to protect yourself! Nowadays you do things differently than in the Middle Ages. I like to use something more stringent linguistic description as wall against unreasonable demands.
photo by frizztext, more than 100,000 views – why? To remember a metaphor for protecting yourself?
read the comments with some links:
me playing in my favorite castle:
slide show with castle interior,
background music: me trying to play J.S. Bach BWV 1056: