https://www.youtube.com/watch?v=qG62IIleMuc
― sarahell, Wednesday, 30 October 2013 21:23 (eleven years ago)
https://www.youtube.com/watch?v=JNDDx_kAHcw
― sarahell, Wednesday, 30 October 2013 21:27 (eleven years ago)
https://www.youtube.com/watch?v=By_gUAd-r5c
― sarahell, Wednesday, 30 October 2013 21:30 (eleven years ago)
http://4.bp.blogspot.com/-rN8tm1K_ez0/ULmwRncFgTI/AAAAAAAAB0s/WXg9BT1yDk4/s1600/pig+petting+lesson.jpg
― sarahell, Wednesday, 30 October 2013 22:15 (eleven years ago)
http://www.thepigsite.com/pighealth/contents/Fig3-36.gif
― nakhchivan, Wednesday, 30 October 2013 22:55 (eleven years ago)
http://hosting03.imagecross.com/image-hosting-3/5656pighole-music.jpg
― sarahell, Wednesday, 30 October 2013 23:46 (eleven years ago)