Saturday evening , our large dog ( part great pry , part white golden retriever ) , Rain , was trying to jump over the backyard fence . The last time she did this ( successfully too , she got nice and lost in the neighborhood ) was when we first got her , before she realized this was her home . After I banged on the window and she briefly hid behind the compost , I went outside to figure out what was freaking her out . What had her shivering with a need to flee ? A real life , fire breathing , wait for it ... hot air balloon slowly gliding over our backyard !

Question: What may have caused Rain , your dog , to hide behind the compost ?
Answer: Rain saw me and got scared .I was flying an object above her .She was trying to jump over the fence .There was an object unknown to her flying above her .