Occasionally lying (glitching?) clock

[tsh73]

Idea came after reading that all clocks in "Joker" movie shows 11:11
(Google "Joker Clocks Theory")
(yes, 11:11 on an analog clock is something you hardly notice!)

So here is simple diital clock.
... What shows right time.
......     Most of the time.
But if you stare at it long enough (change 1/10 probability to change that "long enough")
or just look at it with corner of your eye - you'll see random 11:11:11.

Creepy, isn't it?

'occasionally lying clock
timer 300, [tick]
scan
[tick]
   locate 1, 1
   print "Lying clock"
   if rnd(0)<1/10 then
       print "  11:11:11"
   else
       print "  ";time$()
   end if
   titlebar time$()
wait
'wend