Have you had experience working with situations where a socket was blocked and did not respond to events?

Yes, I have encountered situations where a socket was blocked and did not respond to events. Usually, this happens due to improper use of blocking calls or lack of timeout handling. In Go, for working with network connections, non-blocking operations and contexts with timeouts are often used to avoid hangs. For example, you can use SetReadDeadline to set a read timeout so that the socket does not block indefinitely:

conn.SetReadDeadline(time.Now().Add(5 * time.Second))
_, err := conn.Read(buffer)
if err != nil {
    if netErr, ok := err.(net.Error); ok && netErr.Timeout() {
        // handle timeout
    } else {
        // handle other errors
    }
}

It is also important to properly handle errors and close connections to avoid blocking.