Heres one for all you maths fans features an illustration of the pi symbol which is saying get real to root 1 sometimes expressed as i who is replying be rational as you maths geeks out there will no doubt already know pi is not a rational number and root 1 is not a real number technically root 1 is being a bit hypocritical here as root 1 is not a rational number either but maybe were just thinking about this one too much