bottleneck-slow down or impede by creating an obstruction; His laziness has bottlenecked our efforts to reform the system. blockade, obstruct, stymie, stymy, embarrass, hinder, block-hinder or prevent the progress or accomplishment of; His brother blocked him at every turn.
Becoming a Lifeguard. Becoming a lifeguard does require an initial investment of time and money. Certification courses cost anywhere from $150 to $500, and take upwards of 30 hours to complete.
1 Job Training After Age 50. 2  How to Become a Certified Lifeguard. 3  Interview Questions for a Community Relations Assistant. 4  The Goals for an Intern.  Image Consultant Certification Training.