James Coleman, 23, said he was sending a message, or "tweeting," on his BlackBerry while running to work in Bristol, England, when he ran into the heavy branch and was sent careening onto the pavement, causing a heavily bruised black eye, The Daily Telegraph reported Monday.
"I guess you could say I feel a right Twit," Coleman said. "One minute I was running along posting a tweet, the next I was lying on my back on the pavement in agony."
"The branch came out of nowhere and hit my face hard," he said. "I could only see through one eye for a couple of days afterward, but the swelling has started to go down now.
"I was a laughing stock at the office. I don't even use Twitter that much to be honest. But I certainly won't be tweeting while running anymore."