Oh I have endless joy with them, it's even better when they are the Office computer guy an they see you an walk over to investigate what your doing an they give tip's honestly:
"Hey mate you want a cup of tea"
me "Yea Sure"
him "Hey you might want to check his hard drive"
why - always a stupid question
"Well I ran (random program here) the other day an it said the hard drive was failing" upon investigation it turns out that it was windows defrag and it was only slightly fragmented and the nice little two hour job turns into a 4 hour meat grinder with him looking over your shoulder asking questions.