A riddle Please Help?

[birjuharia]

Here is the riddle:

How can Jim physically stand behind Bob, whilst Bob physically stands behind Jim at the same time?

 

[mikailg511]

Hall of mirrors

 

[Ipster]

they stand face to face.

 

[THE Voice of REASON!]

One is doing a handstand and they are in a cross position with legs apart and the ceiling is low enough to be touched by both. each is going through either the arms or the legs to make the cross.

 

[Whydelilah]

They are standing back to back.

 

[BeArDeD<3DrAgOn]

Their backs are facing each other...

 

[Nellie]

OR - just maybe - there are two Bobs. Aha.

 

[11OhMan04]

They are back to back