I like that.  It's a great reminder. 


tick tock next block, and when will that next bitcoin block be coming in? 
in about 10 minutes   


 the last block was 2 minutes ago?  When do you expect the next block? 
in 10 minutes


But the last block was 9.5 minutes ago?  When do you expect the next block? 
in about 10 minutes, give or take.



But the last block was 35 minutes ago?  When do you expect the next block? 
in about 10 minutes, I presume.


But, but but but..  the last block was more than 2 hours ago?  When do you expect the next block? 
more or less in 10 minutes.


hahahaha

10 minutes is always the correct answer.. or some variation of 10 minutes.. like 600 seconds  or somewhere between 500 and 700 seconds - give or take