Table schema:
CREATE TABLE table_name_35 (extra_points INTEGER, field_goals VARCHAR, touchdowns VARCHAR, player VARCHAR)

Question: How many extra points are there that Herrnstein had with less than 2 touchdowns and less than 0 field goals?
SQL: SELECT AVG(extra_points) FROM table_name_35 WHERE touchdowns < 2 AND player = "herrnstein" AND field_goals < 0