They're not that hard, but you're not in "bad nick", you just need to strengthen these muscles.  They'll get easier the more you do them.  Start of with lowish numbers of reps with gaps, then increase numbers as you get better at them.

Posting on here is your full-time job. ...Right?

Single leg squats are marginally tricky if your balance isn't great.

Fritz - a lot of people are very slow and just don't realise it. I assume you type with the index finger of each hand and your jaw slacked open.

Fritz - a lot of people are very slow and just don't realise it. I assume you type with the index finger of each hand and your jaw slacked open.

Correct

I love you Rhamnousia, you are amazing.

Good to see the Mekon still getting work after his Dan Dare days in those photos.

One of them appears to be lifting your leg up...