seshu babu's highlight joke in my life

i think in our college know about seshu babu sir,i used to stay at hostel during my fist two years of enggneering,this happened when iam in 2-1 sem,
one day iam seriously preparing for the semister examinations,placing a sprite bottle beside me in the study hour,then seshu babu sir came to me and drank some water from the sprite bottle and quickly smashed a line at me that is ."PAWAN you have cheated me",my self and every one of our friends thought that pawan gone out two days back may be he came to know this this thing that is why he made that statement,out of my astonishment he said "i thought this is SPRITE bottle but it is Just water",Goddman,i really felt relaxed with this,i missed a heavy class for hours in the late night,alaughed a lot to satisfy seshu babu sir for his joke.