In case you took me seriously. No it's not a piece of piss. However Bootnecks and Para's will alway banter about how the other course is weak, for girls etc etc.
In Royal Marine training we were always advised by the training team that if we were binned or gave up, we could alway have a go at joining the Para's. I'm sure they did the same.
Also in the Corps we had a lovely little T-shirt that on the front had Para wings and the slogan 'God is a Para'.
On the back was the Globe and Laurel and the slogan ' Because he failed the Commando Course'
Those that have passed P coy, never get get narky about this of course....ever
Quite a number of my young VM's when I was in 16Bde went onto do All arms P Coy and All Arms Commando courses plus PTI courses (not sure if they passed the All Arms Storeman course though Fitpilot) Depending on what job your going in as though and Line managers time limits will vary....I wouldn't let my section go to do these extra courses until they had been at trade for a good year and get their class 2 so it didnt career fowl them but you can use that time well to prep for beat up.