Here's a wonderful video Mark Gridley took in his back yard. It reminds me of one time when we had some adolescent kittens at our house. The back of the breezeway between my cabin and Kat's was open at the top and had a small opening at the bottom, large enough for a kitten to go through. The javelinas were milling around behind the house, and one young javelina had his nose right down by the opening when one of the kittens scampered through. When the kitten and javelina laid eyes on each other, they both started and jumped back. It was quite funny, as the javelina was about 20 times the size of the kitten.
This shows the good side of javelinas. Their bad side, for me, was that they could completely destroy a garden if they got in; they were not a all scared of people and would come right into the house if they could (you can see this in Mark's video -- the javelinas are coming right up onto his patio) -- no amount of yelling would persuade them to leave (the only thing we found that would discourage them was Kat's French horn); they killed my chickens and tore open my dogs. Other than that, they were delightful little creatures. I actually miss them, sort of, now that I'm living in a less wild area where they don't hang out.
Mark mentions walking with the herd. Maybe that afternoon when I found myself surrounded by them, they were just curious. Still, I'd have been afraid to mingle with them. If a mother thought I meant harm to her baby, the whole herd could attack in a heartbeat.