(Portland, OR)  --  A homeless man is behind bars for allegedly attacking a couple with a metal baton at Poet's Beach Park.  Police arrested Jonathan Rance yesterday on several charges.  Police say the couple were at Poet's Beach late last month when Rance expressed anger that their dog was off-leash and playing in the water.  He then allegedly went into his tent, grabbed a baton and attacked the couple.  He's due in court this afternoon.