Interesting, since you want us to move away from boring discussions so the answers should also not be boring. Also, the mood of author suggests that he doesn't want an ideal answer.
1. If I see a laptop bag, and assuming it won't blow up (barring few), I will open the laptop and check for the details in laptop of owner. If nothing found I will format the hard drive and make it brand new and then sell it in computer market for a good price and keep the money. Will let you know at the end what will I do with the money.
2. If I get a crore rupee in the bag, then wow, I had been trying to arrange the same for so long. I will take the money with me, assuming no one saw me and there are no other details as mentioned by the author. As there is no claimaint to the money, I will deposit the same in my bank account in staggered manner.
3. Going to police, forget it, never. Police doesn't even care to intimate me if they find an undisclosed sum of money for which there is no claimaint. So, since police doesn't bother to intimate me, I will reciprocate the same.
4. Lastly, as I got the money due to my own sheer luck, I will thank God an go on long holiday, pay off my home loan, credit card dues, personal loan and buy myself a new study table, I don't have one as of now. Its diffcult to work and use laptop on sofa and bed.
And finally, since I either have used all the money or deposited the same in my bank, so there is a big chance that the Income Tax department will be soon coming after me with a notice to explain the unexplained deposit of cash in my bank account as the banks have intimated the same to them in their Annual Information Report (AIR).
Also my conscience will be after my life as I have so much money and I have kept most of it to myself, so, I will donate some money to some institutions that will take care of children education and food and all other needs.
Now, since I listened to my conscience and accordingly done a good deed of donating some money to children in need so all my greed and ill will be set off by the good work done, as the saying goes "Do good and it will come back manifold"
So, I am absolved of all the guilt and also saved from Income Tax department, as the banks did not file their return in time and police, they have no clue.
Live before you leave.