Ouch. I once cracked a big mofo piss-pot clean in two! didn’t know who or where i was for a few hours!
I see the helmet is one of the cheaper giros.. not wanting to sound snobby but the pricer lids £50+ really do a better job IME. I work in a shop and always take glee in stamping on customer’s old helmets when they get a new one to see how they stand up. Cheaper ones usually shatter into pieces first stomp, but the $$ lids really take a lot of force to break em, and often have a ‘skeleton’ holding them together, so stay largely as one instead of shattering into hundreds of pieces.
Contact madison as giro operate a half price crash replacement policy btw.