It's tough being in an elite unit, such as having to put up with getting fewer perks than your superiors sitting in comfy offices. The police force's airport security unit is celebrating its 30th anniversary and is hosting a buffet dinner in November (see poster, right). Past and present officers are invited - if they pay for it. 'Time flies. You may still have vivid memories of patrolling the aisles in Kai Tak and Hong Kong International Airport, constantly staying alert to terrorists and ensuring Hong Kong's aviation security,' an advert says in the current issue of Offbeat, the police force's in-house newspaper. 'While final preparations are still under way, the dinner and gifts will cost about HK$380. 'On-the-night sales will cost HK$50 more, so make your bookings as soon as possible.' Now that's recognition and reward for the privilege of fighting terrorists in an elite unit whose tough selection and training is second only to the special duties squad, the force's SWAT. Considering the parties and social entertainment for the police chief and his deputies cost a little more, you'd figure they might at least offer to pay for the troops' dinner.