I remember the very last crop of international cabovers they bought. The steps had bright yellow stickers on them labeled LEFT and RIGHT...so the driver know where to put his feet climbing up, and not get tangled in his own legs, and fall to his death I guess.
I used to laugh heartily at that, because some guys were smart enough to scrape the stickers off, and the ones that didn't usually looked like they could use all the instructions they could get.