DS age 5 has been hoovering in his room this morning - good boy 
He has accidentally hoovered up a drawing pin for the cork board he puts his school artwork on.
He is currently screaming blue murder because I won't open up the Hoover and fish it out. When I go to work tonight I can get him a drawing pin from there but apparently that won't be the same so it's not good enough.
So AIBU? Should I root through dead skin, hair and fluff for a perfectly replaceable drawing pin?
Am I a terrible mother? Apparently I have let him down and he doesn't love me anymore! 