The incidents caused NFL Security to contact Houston police, KHOU-TV, Houston, reported Tuesday.
A caller told hosts of The Fred and Ted radio show Tuesday night, a fan "went to [Schaub's] house and told him off." Another fan "took pictures of his family."
The fans left before police could arrive, the caller said. Neither Schaub nor anyone in his family was hurt.
The Texans are 2-3 this season, in part because Schaub has had interceptions that were run in for touchdowns in four consecutive games.
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