Bus driver wave

When 2 bus pass each other the drivers will wave to each other. BUT if the buses are from different depots or other companies the drivers may choose to ignore the other driver.
If the drivers know each other personally they may flip off each other, give the finger to each other, or tell the other driver to Fuck Off

When bus S2003 passed bus C5109 the driver of the C bus ignored the S bus instead of giving the Bus Driver Wave.
When the S bus saw the C bus next he flipped the driver off and told the driver to Fuck Off Cunt