I had a Save the Children book stall in a church hall. The charity next to me was Cats Protection League manned by a grumpy lady who had been a bossy chief Guider when I was a leader.
On my stall was 101 Uses for a Dead Cat book. She snatched it from the table...shredded it...threw it in a bin and told me I was a nasty person. :-)
The book is dark humour and anybody willing to live with a sociopathic serial killer with a huge narcissistic streak has to be able to have s dark sense of humour.
What would she have done if you had been selling drones?.