Having sold out his 2018 run, Alistair cancelled his 2019 show as his wife was giving birth, took 2020 off to single-handedly battle Covid before returning in 2021 for a short run where he caught it. He then wasted precious time writing a new show only for Vladimir Putin to render most of it obsolete. Hopefully he is now bringing his latest hour of topical musings to the Fringe, but this was written in March and you can never be too sure these days. 'A no frills master of his craft' ***** (Scotsman).