How does one "restrain" oneself, anyway? I guess he could've pulled a few One Cheek Sneaks, but you can't just hold it in, you'd explode
I have a brother in law who specializes in this method. He'll usually do this when we're in a crowd, or long line. After he lets one out, he gives me a disapproving look and steps away from me. I don't go anywhere with him anymore.If you read the article, it seems that the offending party was not "sneaking" it, but just carpet bombing the countryside with a grin and a 'make me stop' MO.