Take a look at this picture. I guess there is no OSHA in China. This ladder is hand made with 10 penny nails and 1x4s. It is very rickety (look at the split in the wood), yet the Chinese climb up and down this ladder all the time.
Even the bottom is bent in. Also. note the plastic tie that holds the ends from splitting apart.
Knowing all that, now check out the guy on the top rung. The ladder that I am afraid I will get tetanus and splinters from he scampers up. Only in China.