Pardon my french to us, is normally just used to apologize for using profanity.
I wish I could explain why, but I honestly have no idea.
Hope this helps though!
Answer:
Daedalus was terrified by his own invention because of that he lost his son in consequence.
Explanation:
His creative mind and very innovative "tool" - wings - was indirectly connected with Icarus death. He could blame himself even though Icarus didn't listen to him and flown too high.
