Lol, USB miners like u2 and all will not gives the profit to you. If looks for profit we cannot get the returns for the electricity we paid for it.
Altcoin miners should be perfect for home or the commercial location but not fit for office and all. You will caught by your manager.
he doesnt want to pay that, this is why quiet miner is being searched which i think is called absolutely unfair action! cuz the manager who had offered us a job, has to pay for our plays too x_X
i do strictly ask kids and miners not to do that!