Three bank robberies were attempted Monday and Tuesday in busy, relatively prosperous parts of the District, police said. Two succeeded, at least from a robber’s viewpoint, but one fizzled.

None of the attempts appeared to involve a weapon. In all three, notes were passed to tellers, demanding money, the police said. In the most recent, a robber got cash about 3:25 p.m. Tuesday from the Capital One branch in the 5700 block of Connecticut Avenue NW, police said.

In the later of the two Monday incidents, a robber used a note about 11:15 a.m. to get money from the PNC branch in the 1700 block of Columbia Road NW.

But earlier Monday, an attempt at a note-passing robbery was thwarted, according to police.

It was not, apparently, for the would-be robber’s lack of trying. A police report said the robber orally told a teller at a Wells Fargo bank in the 5100 block of Wisconsin Avenue NW about 9 a.m. to “Give me everything.” Then the note was passed.

Written on a napkin, it demanded the money in “big bills.” But, police said, the teller provided no bills, big or small. An alarm was activated and the robber fled.

Based on the times and places involved, it seemed at least possible that one person, perhaps using disguises, may have been involved in more than one of the incidents.