haha....i have experienced that before too.... Another case is that last time my boss asked me to help him process something...But i have aready told him that i am SUPER busy and might not have the time to do for him now...ask him to task someone if it is really that impt, but he say "nvm take ur time....no hurry" and he left for the toilet.
10 mins later...
he come back ask me have i completed it aready? I told him its like 10 mins only.
"Hey, i tell u to take ur time doesnt mean to take ur OWN SWEET TIME leh! I wan it to be done IMMEDIATELY!"