HAPPENIN’ OTSEGO for WEDNESDAY, FEBRUARY 21 Free Fishing Day Clinic at Glimmerglass State Park OUTDOORS—9:30 a.m. to 3 p.m. “DEC Free Fishing Day Clinic.” Learn to fish with staff of NYS Parks and NYS DEC “I Fish NY.” Gear and bait provided. Learn about winter ecology and how to fillet a fish. No entrance fees. Pre-registration required. Rain date, 3/2. Glimmerglass State Park, 1527 County Route 31, Cooperstown. (607) 547-8662 or visit https://www.facebook.com/GlimmerglassStatePark FIRST AID—6 p.m. “CPR Certification Course.” Laurens Fire Department,…