membergroupids Conditional

[Saphrym]

I know the syntax for doing a conditional that checks equality for a groupid.

I'm trying to find out if there's a way to do a template conditional that returns true if a certain ID is in membergroupids WITHOUT being equal to it.

I.E. I want an image to be posted to the left of the poster name on the postbit IF they are a member of a certain group OR a secondary member of a group.