After the chimpanzee attacks Rudy (Martin E. Brooks), Steve says the chimp had the strength of five men. Researchers have shown that pound for pound, chimpanzees are naturally three to four times as strong as humans.
The glamour magazine photos that Steve and Oscar are looking at in the final minute of the episode are images of Farrah Fawcett, Majors' wife at the time, and guest star in several of the SMDM episodes. This was her final appearance in the series, so this cameo inclusion was a sort of "final hurrah" in honor of her participation.