yes pigs will bite..they will try to charge you..try to shove you and swipe their teeth at you...DONT let them!....they have a very strong pecking order thing....if YOU arent top hog..(heehe)..everytime you go in the pen..etc..they WILL challenge you!..when mine tries to get fresh with me..i shove him back(by his shoulder..or however i can...) HARD AND SUPER FAST...because thats how they fight in the wild(they shove eaach other and swipe the teeth/tusks at the oppionant)....i have even tapped mine on his nose when he grabbed a treat to fast and nipped me...they learn FAST..they are the 4th smartes creature on the planet!...so, VERY smart!....they (honestly) have the mentality of a toddler(fact)...they are WAY smarter than dogs..so be prepared.....they figure out things by THEMSELVES...they are one of the few animals that have the ability to reason...so..again..dont ever let them scare you....they will first try to "swipe" at you with their teeth...jump right on them fast...trust me..they will not try it to often again..once you show them you mean business!..on the other hand..try not to hit them at all..that just makes them VERY mean...just a good quick hard shove or tap on the snout and the word "NO!" works..mine hasent challenged me since he was a piglet..until yesterday..he was trying to root up my rocks in my tile..i told him no...and i went to move him away...he tried to swipe at me....i shoved him back quick and HARD..AND kept going at him till he backed down...it took like 10 seconds(thats how fast you have to be)..then he crawled up in my lap to be petted(because he wanted comfort)...so..they just have to KNOW that you are not afraid of them and are the boss..and they will NOT give you any trouble..honest...as for the escaping thing...i dont know, sorry...mine stay in my yard when they outside(cheaply fenced)...and come when called better than my dogs..
..its ALL about food with pigs(hence the name...
..)..i trained mine with food...called their name....and when they came..they got a goodie!....now..they come every time i call them...
...smart little suckers, i'll tell ya!....but..if you have a feed hog and he will be outside in a pen..they WILL get bored and try to escape...and they WILL escape if they set their mind to it..so..i'd use electric fencing..they will learn fast to stay away from it......best of luck!, Wendy