This article will detail all the necessary of dealing with Munchlax on the RU ladder:
Step 1: Give yourself 30 seconds to laugh
2: Warn opponent to not use Munchlax
3. If opponent doesn't litsen, give several examples of better special walls
4. Link to this: http://www.smogon.com/bw/pokemon/munchlax/ru?level=50 if opponent continues to not litsen
5. Prove your theory, by destroying munchlax with ease
etc, etc
Step 1: Give yourself 30 seconds to laugh
2: Warn opponent to not use Munchlax
3. If opponent doesn't litsen, give several examples of better special walls
4. Link to this: http://www.smogon.com/bw/pokemon/munchlax/ru?level=50 if opponent continues to not litsen
5. Prove your theory, by destroying munchlax with ease
etc, etc