The first day of spring always brings one thing to mind for me, Tom Lehrer’s classic Poisoning Pigeons in the Park. Now it is possible that the kiddies in audience don’t know who Tom Lehrer is, just one of the best satrical songwriters of all time. Such fun filled songs as The Masachism Tango and I hold your hand in my, Dear-about murder and mayhem. He stopped recording songs when he found that the real world was worse than anything he could make up. But Doctor Demento has done his best to keep Tom Lehrer alive and well in the…