I the early days of the computer phone scammers (the ones that pretend to be from Microsoft and try to get your IP address or whatever) my friend’s Mum would say “Hold on, I’ll turn on the computer” and then put the phone down, go do something, and if they were still there later she’d say “Almost there, it’s very slow.” and repeat until she got bored and then tell them she didn’t have a computer. One time she had a guy on for almost an hour apparently lol.