It was an extremely hot day. My younger brother Walt and I had decided to go swimming in the stream behind Mr Blickez's house, because it would be the only way to cool ourselves down. Across his farm and through some woods was a deep swimming hole supplied by several cold springs . The only problem with our plan was that this farm was guarded by a huge mean Hereford bull . Mr Blickez had told us that Elsie, the animal's name, was the meanest bull in town, maybe even the county, and we believed in him. But the hotter it got, the more we thought there was reason to doubt about what he said. For one thing, we remembered Mr Blickez liked telling tall tales; for another, Elsie seemed like a strange name for a bull. Finally, I talked Mom into asking permission for us to walk through the farm, and Mr Blickez finally agreed. On our way across the farm, we stopped at the fence to admire the swimming hole. The sun shone brightly across the cool waters. We couldn't wait to get there. Suddenly, Walt shouted loudly. Elsie had run to him and was licking  his back. I immediately hid under the fence. However, when I looked up, I saw that Elsie wasn't a big mean bull at all. She was just a friendly young cow, and she was going to keep licking my brother's back as long as he stood still. When we discovered the truth, we were so happy. We then ran to the swimming hole and jumped in. The water was just as wonderful as we had dreamed. After that day, we had many good days and we often visited our secret swimming hole guarded by the so-called "big mean bull". What was the problem faced by the author and his brother?
They didn't know where to swim. They had to face a very mean bull. Their mother didn't want them to swim. They didn't know how to get to the stream.