`node < /dev/tty` doesn't work?!?

gistfile1.txt

☮ ~ (master) ⚡ cat read.sh 
while [ "$OK" != "y" ] && [ "$OK" != "yes" ] && [ "$OK" != "no" ]; do
  echo "Is this OK?"
  echo "  enter 'yes' or 'no'"
  echo "  or 'show' to see a list of files "
  read OK
done < /dev/tty
☮ ~ (master) ⚡ cat read.sh | sh
Is this OK?
  enter 'yes' or 'no'
  or 'show' to see a list of files 

Is this OK?
  enter 'yes' or 'no'
  or 'show' to see a list of files 
ye
Is this OK?
  enter 'yes' or 'no'
  or 'show' to see a list of files 
yes
☮ ~ (master) ⚡ echo "node < /dev/tty"
node < /dev/tty
☮ ~ (master) ⚡ echo "node < /dev/tty" | sh
> 


sl
process
.exit
WTF?!?!
^C☮ ~ (master) ⚡