PSSSST. Don't look now, but is that a taxman creeping up behind you? Or are you enthused enough by Finance Minister P. Chidambaram's tax cuts to mend your ways and fess up to your sins? For, if Budget 97 was about anything at all, it was about curbing tax evasion. Chidambaram has his gimlet eyes fixed on your black money. He's just fini-shed waving the carrots. But, in his other hand, the one he has behind his back, he could be holding a stick. A big one. With spikes.