Have I misremembered?

I have, albeit vague, memories of assorted beings lying, horizontally in strange places; e.g. top of an underground Escalator, etc. (TOP photo)
    Then, "all-of-a-suddenly-like", some time ago now,  it seems I heard of how long people could "plank"; most recently on Jeremy Vine's prog.  two of them tried it and Jeremy (A mere youth of 56-57 summers) said he was shattered after 30 seconds. (Lower photo)
    "Pre-Alice" (2016), we were 'religiously' using WiiFIT© and I got respectable times on it. - SO - I just had to exceed 30 seconds; only just I freely admit but was NOT, as the Vine so vehemently put it "shattered".  

I didn't realise I was doing a Banana-Plank though.
;¬)