on the clothing, if its in dress code then you must abide by it, if not this is opertunity for them to hang you, dont give that edge, you seem like a pretty respected person, i work with guys like this daily, some old than i some younger, the thing is i treat them like i want to be treated nothing more nothing less, if they give me problems i over look it, ( yeah it may be hard but i do) i am a very patient person, and sometimes they will try to piss me off but i ignore it, bro do you what you have to do but do it by the rules, dont give them grounds to fight against you.. bottom line do your job do it well, who gives a **** what they think or what they do, usually the more seniority the lazier people are..

how long does it take to be a L.T. ? if youre given the opertunity take it, it only betters yourself who cares what others say ...