Laughter is one of the first forms of communication, and today teachers found out how it can help in the classroom. National comedian and former teacher Devin Siebold getting a lot of laughs from several hundred Lima City School teachers and support staff. Today was an in-service for them to take time and work on professional development and lesson planning. Siebold knows firsthand how stressful it can be in the classroom and says humor can be a big help.