The Moneyist: Should I tell my sister that her husband, a notorious spender, has a secret credit card? No Comments Uncategorized ‘My niece told me that her dad, my brother-in-law, has a secret credit card that my sister doesn’t know about.’ ‘My niece told me that her dad, my brother-in-law, has a secret credit card that my sister doesn’t know about.’ Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to print (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Reddit (Opens in new window)Click to share on Pinterest (Opens in new window)Click to share on WhatsApp (Opens in new window)