Forgot to shake the smack pack before smacking
 

Anyone else forgot that and it turned out fine?

Its fine. Shake it now if you like

I suspect the smacking, subsequent rupturing of the internal packet and the distribution of its contents will suffice. You'll be fine.

I didn't shake mine before smacking, and it's bubbling away happily upstairs. No harm done.

Thank you, I didn't shake it at all. Waiting for the fermenting to start.

Edit: And so it has. :)

Great, thank you! :)

A relief to hear. Thank you! :)

yeah, I had a packet smash behind a bottle in the beer fridge, and i just kept it cold, and once I wanted to brew.. took it out, warmed it in a warm water bath, and shook it. it inflated in like two hours tops... I thought it may explode- but then I thought that Wyeast probibly designs the packaging to take a fair amount of pressure before bursting.

Yeah they have! :) Mine didn't explode even though I left it for 15 hours at 22C.