we regularly have apprentice mechanics come into the factory when they've been sent looking for a bag of sparks for the grinder or a long wait
we're normally their 3rd or 4th stop so we tell them what's going on... also tell them to play along and have a nice walk up the street asking a few more places ;-)
Have they been in looking for sky hooks yet that's quite a good one or a long stand it can keep them occupied for a while especially if they have been sent off site in a works van