 In this episode, a bar flap is lifted up and an inebriated Gary  almost leans on it before realising and tapping his nose knowingly.  This is a reference to David Jason (qv)s famous pratfall in  _"Only Fools and Horses" (1981) {Yuppy Love (#6.1)}_ (qv) in which  Nicholas Lyndhurst (qv) also starred.