screw it up

Man.. its so unexpected. Chemistry practical today.. and it came out redox titration..but the mole calculations were so easy, eh the last question on suggestion one was so difficult. My titiration result was DAmn far from Mr Chan..and i strongly agree with that his result is the wrong one!!! it cant be 19.50!!! its 20.0 ok!!! i did repeated the experiment 4 times hor!!
PeiFen complained that i was fast..but!!! u gotta think man.. i am not fast enough compare to wei chiong and marcus they all.. and Rita was already lying on the table when i've just finished! -.-
O!! didnt u ppl smell the smelly pungent gas? i didnt realise that the solution i mixed with was aqueous ammonia?.. and of coz it will give a pungent smell when it reacts with something right..but i wrote pungent gas released and it turn moist red litmus paper blue. the gas is ammonia for all THREE solutions! how dumb could i be..realised that after handing in the paper.