WINONA, Minn.  – A Winona driver stumbled through a field sobriety test and was charged with being drunk at the wheel. Christian Lee Kauphusman, 56, was stopped about 10:40 p.m. on Riverview Drive near the fleeting harbor. His eyes were bloodshot and watery like those of a drunk, police said. His blood-alcohol level tested at 0.11% — almost 1-1/2 times what’s allowed.