Sentence:  When it reaches those times during your meeting, no matter how well things are going, make your <WSD>safety-call</WSD> to let them know you're doing ok. 
Meaning of the word marked with <WSD> tags:  A prescheduled phone call to another person who knows where one is and who one was going out with. A missed check-in (or using a pre-arranged code phrase for danger) signals one's contact person to call for help.