OK 24 hours on the radiator and touch wood, all seems OK. No menu switching with trig keys any more. Thankfully it was sugar and milk free Rooibos.

I thought I’d mopped all the tea up before it soaked in but clearly not. Lost a Macbook Pro to a beer a few years ago in a similar way. Pulled it apart and washed it all with distilled water and left it for a week but it was too late. Recovered the full HDD though which was something.

Thanks all.