I would post NO Trespassing signs up.
Unfortunately, I think if Ammo bit or hurt one of those kids, you would be liable, a No Trespassing sign may help "some", but I think you might still be liable..
Danger Danger vom Kleinen Hain aka Masi
"Angel" Jakoda's Bewitchen Sami CD OA OAJ OAC NGC OJC RS-O GS-N JS-O TT HIC CGC
"Angel" Steinwald's Four x Four CGC HIC TT
Harmonyhill's Hy Jynx NA NAJ NAC NJC RS-N JS-N HIC
Jakoda's Jagged Edge