Caught from Behind 
by Tom Lehmann (9/03, revised 6/07) 

Improper 

A1  (8) Star right, blend to 
    (8) Circle left 3/4 
A2  (4) (ladies tug partner) Gents rollaway 
   (12) Partner swing 
B1  (4) Balance the ring 
    (4) Petronella twirl one place right 
    (8) Neighbor swing 
B2  (8) Right and left thru 
    (8) Star left 

Last time through: 
B2  (4) Balance the ring 
    (4) Petronella twirl one place right 
    (8) Partner swing

The interest here is in A2, as partners roll each other into the swing.  Some
of this kinesthetic feeling is repeated in B1, allowing the use of just one
Petronella Twirl in this dance to not feel so odd.