Clare Burt, Sheila Hancock and Kirsty MacLaren. Credit: Johan Persson/ When I arrived at Chichester Festival Theatre last night to see the first production of this year’s season I was uncharacteristically unprepared. I’m normally that person who meticulously researches every little detail of a show before seeing it but like the changing of a season or the realisation you’re no longer as fit (or young) as you used to be the date rather crept up on me.