would you look down on a person who is more senior than you and is doing the same job as you?

recently, my boss hired a worker who is more senior than me... she actually transfered him over and wants me to guide him... he werk with my colleagues in other branches before and before that i have been hearing lot of negative things about him... and all my colleagues dislike him... they find him old and weird ...and proud...
it was only annouced to me the day before the voe dinner and the following monday he will be reporting to je... and news spread very fast! during the voe dinner, everyone kept asking me if he is really coming over to work with me and some even wishes me good luck and stuff...
though i dont really work with him before and i do not know wat kind of person he is... i am not worried at all... i jus find that these people are really quite sacartic.... and 38....
the main reason why my boss transfered him over to work with me is because they find him fishy and sometimes abit lazy...and she wants me to help to monitor his behaviour so that she can also better monitor him at je at the same time .... je is small, we only have one level easier to monitor him compared to other branches.... they dont have solid reasons to ask him to leave and so asked him to come over... to work with me...
it has been a week that i have been working with him.... i agreed with my colleagues that sometimes he is weird and proud... he likes to brag about what he has done in the past etc... perhaps he doesnt mean to be proud... he jus wanna share his experiences?
but i really find him weird at times... he has lots of white hair and the way he look at people is werid.... opps.. i am not prejudiced here... he gave me creeps at time hee... and the only thing i cannot stand him is he always digs his nose in front of meee!! i think there are many golds out there... argh! yuckies... dont even dare to touch the things he touches before... eeeekks!
last week he told he will be on sat duty in orchard branch... and i was surprised that he will be on duty alone... so i warned him that on sat the volume is normally quite high and u might not be able to handle... so i suggested to him to call boss... and so he did... he tried to persuade boss to put another person to be on duty with him.. but failed... boss dont allow.. and he quietly obey...
i asked him... why dont u insist to ask her to send someone to help u... the reply he gave me is "i try to manage myself ba... i know i am old dont wish to bother her much..." after hearing that i pity him more... i think he knows that everyone dislikes him.. and i bet he is scare to lose his job
i am quite curious to know his past.... why is he werkin as a temp only at this age... he once told me that he is a personal banker before and has many years of banking experience... and the only thing that cross my mind is that he could have something very wrong before... and thats why he has to resort to this state??? oh well, i hope when i am old i am not depise by others can le... hoho!