It just occurred to me to look in Console, and I found

Code:
10/17/16 7:14:12.424 AM com.apple.xpc.launchd[1]: (com.apple.SafariServices[44416])
Service exited due to signal: Trace/BPT trap: 5

Google isn't the least bit helpful.

The new Great Equalizer is the SEND button.

In Memory of Harv: Those who can make you believe absurdities can make you commit atrocities. ~Voltaire