How would you respond when

[ConnorMcLeod]

when your colleagues (peer) says to you, in a bullish tone, "I don't care, you have to do [this task] for me even it is not your job."

 

[wakaowalao]

Well, if just col, I will tell him/her that i will TRY.

Try = maybe will do , maybe will not do. If cannot do, too bad tell him/her again, I "did" TRIED.

 

[Simon_84]

yes, try is a good word to use.
when results are not as expected, you can always shoot back if you're that particular, why don't you do it yourself ?
lack of time is just another lame excuse...

 

[Rashkae]

And I'd make sure I sent him an email detaling that "as you requested me to do so, I will attempt this task. However, please be aware that it is not my field of specialization, and as such I cannot guarantee the results you may be seeking."

Just as a CYA statement.