While grilling steaks on the barbie this evening, I happened to see my neighbour(a high school teacher)instructing his 18 yr. old son on how to change a tire on the kid's Ranger. He had the standard axle jack under the bumper and was cranking like there was no tomorrow, all the while explaining to his son how it was done. The jack reached it's limit and the truck had not lifted. There were two guys standing in front of the vehicle, looking at the jack, scratching first their heads, and then their crotches trying to figure why the truck would not lift. I could not handle it any more and told them that perhaps the jack would work better if it was placed under the axle. I guess that dad should spend some of his discretionary teaching time learning how to run an axle jack. Wonder if his students are a reflection of his teaching abilities???