The second of the six-part Dayton Theology on Tap spring speaker series will feature Ryan Mahle., presenting “The Sacramental Worldview.” Theology on Tap presents lively talks about Catholic life for young adults in a relaxed setting. The theme for the 2018 Spring Theology on Tap in Dayton is, “I’m Catholic, so now what?” Social time begins at 7 p.m.; talks at 7:30 p.m.