A doctor, an engineer, and a fungal taxonomist arrived at The Pearly GatesThe doctor said how hed healed the sick, helped the lame; but he was a sinner and was sent to HellThe engineer told how hed built homes for the homeless, etc; but he messed up the environment, so he was sent to HellThe fungal taxonomist was frightened by all this, but as soon as he mentioned his occupation, God said "Youve already been thru Hell, Welcome to Heaven"